2154 + Mcqs in Mathematics Page 11 McqOptions

501.	The least perfect square exactly divisible by each of the numbers 3, 7, 9,12 and 15 is ________
A.	78400
B.	44100
C.	19600
D.	12600
E.	None of these
Answer» C. 19600

Discussion

502.	How many different positive integers are there in between\[{{10}^{5}}and\text{ }{{10}^{6}}\], the sum of whose digits is equal to 2?
A.	5
B.	6
C.	8
D.	11
E.	None of these
Answer» C. 8

Discussion

503.	Find the smallest number by which 2340 must be multiplied so that the product is a perfect cube.
A.	23350
B.	25350
C.	6580
D.	11780
E.	None of these
Answer» C. 6580

Discussion

504.	If the eight digit number 28357a59 is exactly divisible by 111, then find the least possible value of a.
A.	0
B.	1
C.	2
D.	3
E.	None of these
Answer» B. 1

Discussion

505.	The smallest number of four digits exactly divisible by 12, 16, 18 and 22 is
A.	3064
B.	3168
C.	1584
D.	144
E.	None of these
Answer» D. 144

Discussion

506.	The smallest number by which 294 must be multiplied so that the product becomes a perfect square is _________
A.	7
B.	2
C.	3
D.	6
E.	None of these
Answer» E. None of these

Discussion

507.	Find the unit's digit in the product of the first 50 even natural numbers.
A.	2
B.	4
C.	6
D.	0
E.	None of these
Answer» E. None of these

Discussion

508.	The least number which when decreased by 19 is exactly divisible by 24, 26, 28 and 32 is _________
A.	4095
B.	8736
C.	8755
D.	4076
E.	None of these
Answer» D. 4076

Discussion

509.	How many pairs of co-primes can be formed from the set \[\left\{ 2,\text{ }5,\text{ }6,\text{ }7,\text{ }8,\text{ }9,\text{ }12 \right\}\]
A.	14
B.	13
C.	12
D.	18
E.	None of these
Answer» C. 12

Discussion

510.	The value of is_______
A.	\[1\frac{26}{43}\]
B.	\[2\frac{26}{43}\]
C.	\[1\frac{17}{37}\]
D.	\[\frac{17}{37}\]
E.	None of these
Answer» B. \[2\frac{26}{43}\]

Discussion

511.	Find the LCM of the least 4-digit number and the greatest 4-digit even number.
A.	9998000
B.	4567800
C.	4999000
D.	260000
E.	None of these
Answer» D. 260000

Discussion

512.	Anil has \[\frac{\mathbf{2}}{\mathbf{3}}\] of a cake. He ate \[\frac{\mathbf{4}}{\mathbf{7}}\] of it. What part of the cake has he eaten?
A.	\[\frac{2}{7}\]
B.	\[\frac{2}{21}\]
C.	\[\frac{5}{21}\]
D.	\[\frac{3}{5}\]
E.	None of these
Answer» C. \[\frac{5}{21}\]

Discussion

513.	If 3a52895b7 is exactly divisible by 3 and 11 both, then find the value of a + b. (where a and b are digits from 0 to 9.)
A.	6
B.	9
C.	12
D.	15
E.	None of these
Answer» B. 9

Discussion

514.	34.678678678 is a/an
A.	integer
B.	whole number
C.	rational number
D.	irrational number
E.	None of these
Answer» D. irrational number

Discussion

515.	The HCF and LCM of two numbers are 16336 respectively. If one of them is 48, then find the other.
A.	116
B.	112
C.	118
D.	158
E.	None of these
Answer» C. 118

Discussion

516.	Which one of the following is the correct interpretation of expression 13 - 15?
A.	Start at 13 on the number line and move 15 on the right.
B.	Start at 13 on the number line and move 15 on the left.
C.	Start at 15 on the number line and move 13 on the right.
D.	Start at 15 on the number line and move 13 on the left.
E.	None of these
Answer» C. Start at 15 on the number line and move 13 on the right.

Discussion

517.	How many composite numbers are there in between 150 and 200 (including 150 and 200 both)?
A.	40
B.	42
C.	41
D.	39
E.	None of these
Answer» B. 42

Discussion

518.	The descending order of \[\frac{\mathbf{11}}{\mathbf{13}}\mathbf{, }\frac{\mathbf{10}}{\mathbf{11}}\mathbf{, }\frac{\mathbf{12}}{\mathbf{17}}\mathbf{, }\frac{\mathbf{3}}{\mathbf{7}}\mathbf{, }\frac{\mathbf{4}}{\mathbf{5}}\]is __________
A.	\[\frac{12}{17}>\frac{11}{13}>\frac{4}{5}>\frac{3}{7}>\frac{10}{11}\]
B.	\[\frac{12}{17}<\frac{11}{13}<\frac{4}{5}<\frac{3}{7}<\frac{10}{11}\]
C.	\[\frac{10}{11}>\frac{11}{13}>\frac{4}{5}>\frac{12}{17}>\frac{3}{7}\]
D.	\[\frac{10}{11}<\frac{11}{13}<\frac{4}{5}<\frac{12}{17}<\frac{3}{7}\]
E.	None of these
Answer» D. \[\frac{10}{11}<\frac{11}{13}<\frac{4}{5}<\frac{12}{17}<\frac{3}{7}\]

Discussion

519.	The greatest number which can divide 251 and 284 by leaving remainders 13 and 12 respectively is _________
A.	18
B.	17
C.	34
D.	36
E.	None of these
Answer» D. 36

Discussion

520.	Which among the following pair of numbers is not twin primes?
A.	13 and 11
B.	5 and 7
C.	29 and 23
D.	3 and 5
E.	None of these
Answer» D. 3 and 5

Discussion

521.	The HCF and LCM of two numbers are 140 and 29400. If one of the numbers is 840, then find the other number.
A.	8100
B.	4700
C.	4850
D.	4900
E.	None of these
Answer» E. None of these

Discussion

522.	Find the unit's digit in the product of the first 100 odd natural numbers.
A.	0
B.	1
C.	3
D.	5
E.	None of these
Answer» E. None of these

Discussion

523.	Which among the following is not a perfect number?
A.	6
B.	28
C.	496
D.	120
E.	None of these
Answer» E. None of these

Discussion

524.	The smallest possible decimal up to four decimal places is_______.
A.	0.1000
B.	0.0001
C.	0.001
D.	0.01
E.	None of these
Answer» C. 0.001

Discussion

525.	How many numbers amongst the numbers 9 to 54 are there which are exactly divisible by 9 but not by 3?
A.	8
B.	6
C.	5
D.	Nil
Answer» E.

Discussion

526.	How many combinations of two-digit numbers having 8 can be made from the following numbers? 8, 5, 2, 1, 7, 6
A.	9
B.	10
C.	11
D.	12
Answer» D. 12

Discussion

527.	Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the centre. D is between F and B. A is second to the left of D and second to the right of E. Who is facing A?
A.	B
B.	D
C.	F
D.	Either F or B
Answer» E.

Discussion

528.	Directions: Read the following information to answer the questions given below: (i) Five boys are standing in a line facing the wall wearing red, green, yellow, white and blue dress. (ii) The yellow-dressed boy is not standing at any end of the line. (iii) The red-dressed boy is not standing at any end of the line. Who is to the right of yellow-dressed boy?
A.	Data inadequate
B.	White
C.	Green
D.	Blue
Answer» B. White

Discussion

529.	Directions: Read the following information to answer the questions given below: (i) Five boys are standing in a line facing the wall wearing red, green, yellow, white and blue dress. (ii) The yellow-dressed boy is not standing at any end of the line. (iii) The red-dressed boy is not standing at any end of the line. The boy in the middle wears which coloured-dress?
A.	Green
B.	Blue
C.	Either Green or Blue
D.	Cannot be determined
Answer» E.

Discussion

530.	Directions: Five persons are sitting in a row. One of the persons at the extreme ends is intelligent and other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and the fat person. Which of the following persons is sitting at the centre?
A.	Intelligent
B.	Fat
C.	Fair
D.	Weak
Answer» C. Fair

Discussion

531.	Directions: Five persons are sitting in a row. One of the persons at the extreme ends is intelligent and other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and the fat person. Tall person is at which place counting from right?
A.	First
B.	Second
C.	Third
D.	Fourth
Answer» C. Third

Discussion

532.	In a row of 40 girls, when Komal was shifted to her left by 4 places her number from the left end of the row became 10. What was the number of Swati from the right end of the row if Swati was three places to the right of Komal's original positions?
A.	22
B.	23
C.	25
D.	24
Answer» E.

Discussion

533.	A number is greater than 3 but less than 8. Also, it is greater than 6 but less than 10. The number is
A.	5
B.	6
C.	7
D.	8
Answer» D. 8

Discussion

534.	Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the center. D is between F and B. A is second to the left of D and second to the right of E. Who among the following is facing D?
A.	A
B.	C
C.	E
D.	Cannot be determined
Answer» C. E

Discussion

535.	Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the center. D is between F and B. A is second to the left of D and second to the right of E. Who is facing A?
A.	B
B.	D
C.	F
D.	Either F or B
Answer» E.

Discussion

536.	Directions: Read the following information to answer the questions given below: (i) Five boys are standing in a line facing the wall wearing red, green, yellow, white and blue dress. (ii) The yellow-dressed boy is not standing at any end of the line (iii) The red-dressed boy is not standing at any end of the line. Who is to the right of yellow-dressed boy?
A.	Data inadequate
B.	White
C.	Green
D.	Blue
Answer» B. White

Discussion

537.	If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 5 8 9 3 6 2 5 5 4 3 7 1 4 4 2
A.	1
B.	2
C.	3
D.	4
Answer» D. 4

Discussion

538.	In a row of girls. Rita and Monika occupy the ninth place from the right end and tenth place from the left end respectively. If the interchange their places, then Rita and Monika occupy seventh place from the right and eighteenth place from the left respectively. How many girls are there in the row?
A.	25
B.	26
C.	27
D.	Data inadequate
Answer» C. 27

Discussion

539.	In a row of 40 girls, when Komal was shifted to her left by 4 places her number from the left end of the row became 10. What was the rank of Swati from the right end of the row if Swati was three places to the right of Komal's original positions?
A.	22
B.	23
C.	25
D.	24
Answer» E.

Discussion

540.	Directions: Five persons are sitting in a row. One of the two persons at the extreme ends is intelligent and the other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and he fat person. Which of the following persons is sitting at the centre?
A.	Intelligent
B.	Fat
C.	Fair
D.	Weak
Answer» C. Fair

Discussion

541.	In a row of boys facing the North, A is sixteenth from the left end and C is sixteenth from the right end. B, who is fourth to the right of A, is fifth to the left of C in the row. How many boys are there in the row?
A.	39
B.	40
C.	41
D.	42
Answer» C. 41

Discussion

542.	Directions: Five persons are sitting in a row. One of the two persons at the extreme ends is intelligent and the other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and he fat person. Person to the left of weak person possesses which of the following characteristics?
A.	Intelligent
B.	Fat
C.	Fair
D.	Tall
Answer» B. Fat

Discussion

543.	If the seventh day of a month is three days earlier than Friday, what day will it be on the nineteenth day of the month?
A.	Sunday
B.	Monday
C.	Wednesday
D.	Friday
Answer» B. Monday

Discussion

544.	If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 589 362 554 371 442
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

545.	What will be the difference between the sum of the odd digits and the sum of the even digits in the number 857423
A.	0
B.	1
C.	2
D.	4
Answer» C. 2

Discussion

546.	What will be the difference between the sum of the odd digits and the sum of the even digits in the number 857423.
A.	0
B.	1
C.	2
D.	4
Answer» C. 2

Discussion

547.	In a row of girls. Rita and Monika occupy the ninth place from the right end and tenth place from the left end respectively. If they interchange their places, then Rita and Monika occupy seventeenth place from the right and eighteenth place from the left respectively. How many girls are there in the row?
A.	25
B.	26
C.	27
D.	Data inadequate
Answer» C. 27

Discussion

548.	Mohan and Ramesh are ranked seventh and eleventh respectively from the top in a class of 41 students. What will be their respective ranks from the bottom in the class?
A.	30th and 34th
B.	34th and 30th
C.	35th and 31st
D.	36th and 32nd
Answer» D. 36th and 32nd

Discussion

549.	Directions: Five persons are sitting in a row. One of the two persons at the extreme ends is intelligent and the other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and the fat person. Which of the following person is sitting at the center?
A.	Intelligent
B.	Fat
C.	Fair
D.	Weak
Answer» C. Fair

Discussion

550.	Directions: Five persons are sitting in a row. One of the two persons at the extreme ends is intelligent and the other one is fair. A fat person is sitting to the right of a weak person. A tall person is to the left of the fair person and the weak person is sitting between the intelligent and the fat person. Person to the left of weak person possesses which of the following characteristics?
A.	Intelligent
B.	Fat
C.	Fair
D.	Tall
Answer» B. Fat

Discussion

Explore topic-wise MCQs in 7th Class.

The least perfect square exactly divisible by each of the numbers 3, 7, 9,12 and 15 is ________

How many different positive integers are there in between\[{{10}^{5}}and\text{ }{{10}^{6}}\], the sum of whose digits is equal to 2?

Find the smallest number by which 2340 must be multiplied so that the product is a perfect cube.

If the eight digit number 28357a59 is exactly divisible by 111, then find the least possible value of a.

The smallest number of four digits exactly divisible by 12, 16, 18 and 22 is

The smallest number by which 294 must be multiplied so that the product becomes a perfect square is _________

Find the unit's digit in the product of the first 50 even natural numbers.

The least number which when decreased by 19 is exactly divisible by 24, 26, 28 and 32 is _________

How many pairs of co-primes can be formed from the set \[\left\{ 2,\text{ }5,\text{ }6,\text{ }7,\text{ }8,\text{ }9,\text{ }12 \right\}\]

The value of is_______

Find the LCM of the least 4-digit number and the greatest 4-digit even number.

Anil has \[\frac{\mathbf{2}}{\mathbf{3}}\] of a cake. He ate \[\frac{\mathbf{4}}{\mathbf{7}}\] of it. What part of the cake has he eaten?

If 3a52895b7 is exactly divisible by 3 and 11 both, then find the value of a + b. (where a and b are digits from 0 to 9.)

34.678678678 is a/an

The HCF and LCM of two numbers are 16336 respectively. If one of them is 48, then find the other.

Which one of the following is the correct interpretation of expression 13 - 15?

How many composite numbers are there in between 150 and 200 (including 150 and 200 both)?

The descending order of \[\frac{\mathbf{11}}{\mathbf{13}}\mathbf{, }\frac{\mathbf{10}}{\mathbf{11}}\mathbf{, }\frac{\mathbf{12}}{\mathbf{17}}\mathbf{, }\frac{\mathbf{3}}{\mathbf{7}}\mathbf{, }\frac{\mathbf{4}}{\mathbf{5}}\]is __________

The greatest number which can divide 251 and 284 by leaving remainders 13 and 12 respectively is _________

Which among the following pair of numbers is not twin primes?

The HCF and LCM of two numbers are 140 and 29400. If one of the numbers is 840, then find the other number.

Find the unit's digit in the product of the first 100 odd natural numbers.

Which among the following is not a perfect number?

The smallest possible decimal up to four decimal places is_______.

How many numbers amongst the numbers 9 to 54 are there which are exactly divisible by 9 but not by 3?

How many combinations of two-digit numbers having 8 can be made from the following numbers? 8, 5, 2, 1, 7, 6

Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the centre. D is between F and B. A is second to the left of D and second to the right of E. Who is facing A?

In a row of 40 girls, when Komal was shifted to her left by 4 places her number from the left end of the row became 10. What was the number of Swati from the right end of the row if Swati was three places to the right of Komal's original positions?

A number is greater than 3 but less than 8. Also, it is greater than 6 but less than 10. The number is

Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the center. D is between F and B. A is second to the left of D and second to the right of E. Who among the following is facing D?

Directions: Read the following information carefully and answer the questions that follow: A, B, C, D, E and F are seated in a circle facing the center. D is between F and B. A is second to the left of D and second to the right of E. Who is facing A?

If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 5 8 9 3 6 2 5 5 4 3 7 1 4 4 2

In a row of 40 girls, when Komal was shifted to her left by 4 places her number from the left end of the row became 10. What was the rank of Swati from the right end of the row if Swati was three places to the right of Komal's original positions?

In a row of boys facing the North, A is sixteenth from the left end and C is sixteenth from the right end. B, who is fourth to the right of A, is fifth to the left of C in the row. How many boys are there in the row?

If the seventh day of a month is three days earlier than Friday, what day will it be on the nineteenth day of the month?

If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 589 362 554 371 442

What will be the difference between the sum of the odd digits and the sum of the even digits in the number 857423

What will be the difference between the sum of the odd digits and the sum of the even digits in the number 857423.

Mohan and Ramesh are ranked seventh and eleventh respectively from the top in a class of 41 students. What will be their respective ranks from the bottom in the class?