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MCQOPTIONS
This section includes 2251 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1601. |
If the six digit number 15x1y2 is divisible by 44, then (x + y) is equal to: |
| A. | 7 |
| B. | 8 |
| C. | 6 |
| D. | 9 |
| Answer» B. 8 | |
| 1602. |
A device can write 100 digits in 1 minute. It starts writing natural numbers. The device is stopped after running it for half an hour. It is found that the least number it was writing is incomplete. The number is: |
| A. | 3000 |
| B. | 3001 |
| C. | 1026 |
| D. | 1027 |
| Answer» E. | |
| 1603. |
H.C.F. of x3 - x2 + 4x - 4 and x6 - 1 is |
| A. | x + 1 |
| B. | x - 1 |
| C. | x2 - 1 |
| D. | x3 - 1 |
| Answer» C. x2 - 1 | |
| 1604. |
1 Litre = ____ Centimetre3 |
| A. | 10000 |
| B. | 1000 |
| C. | 100 |
| D. | 500 |
| Answer» C. 100 | |
| 1605. |
How many of the following number are divisible by 42?2646, 1008, 1470, 656, 2478, 1826 |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 1606. |
In a shop, there are three clocks which chime at intervals of 15, 20 and 30 minutes respectively. They all chime together at 10 a.m. At what time will they all chime together again? |
| A. | 10 : 45 a.m. |
| B. | 10 : 50 a.m. |
| C. | 11 : 15 a.m. |
| D. | 11 a.m. |
| Answer» E. | |
| 1607. |
If a baker's dozen is 13, how much would be five dozens of baker's dozens? |
| A. | 845 |
| B. | 936 |
| C. | 720 |
| D. | 780 |
| Answer» E. | |
| 1608. |
A car consumes 5.4 litres of petrol to cover 60.48 km, how many kilometres be covered with 22 litres of petrol? |
| A. | 246.4 |
| B. | 238.62 |
| C. | 240.24 |
| D. | 243.5 |
| Answer» B. 238.62 | |
| 1609. |
In a school, every student is assigned a unique identification number. A student is a football player if and only if the identification number is divisible by 4, whereas a student is a cricketer if and only if the identification number is divisible by 6. If every number from 1 to 100 is assigned to a student, then how many of them play cricket as well as football? |
| A. | 4 |
| B. | 8 |
| C. | 10 |
| D. | 12 |
| Answer» C. 10 | |
| 1610. |
In a town number of maternal death is 50 in a year. If number of infants born in this year was 500, then maternal mortality rate per 1,00,000 is |
| A. | 1000 |
| B. | 10,000 |
| C. | 10,00,000 |
| D. | 90,000 |
| Answer» C. 10,00,000 | |
| 1611. |
Let x be the number which when divides 988, 1637 and 2345, the remainder in each case is the same. The remainder is: |
| A. | 49 |
| B. | 44 |
| C. | 54 |
| D. | 39 |
| Answer» C. 54 | |
| 1612. |
Mohan starts to calculate the sum of all odd natural numbers less than 83. What result does he get?A. 1456B. 1681C. 1437D. 1671 |
| A. | C |
| B. | A |
| C. | B |
| D. | D |
| Answer» D. D | |
| 1613. |
Product of two positive numbers is 378 and first number is 3 more than the second number. What is the sum of these numbers? |
| A. | 39 |
| B. | 33 |
| C. | 45 |
| D. | 21 |
| Answer» B. 33 | |
| 1614. |
Find the common factor of (3757 + 4357) and (3737 + 4337). |
| A. | (43 - 37) |
| B. | (43 + 37) |
| C. | (3737 + 4337) |
| D. | (3757 + 4357) |
| Answer» C. (3737 + 4337) | |
| 1615. |
How many factors of 420 are prime numbers? |
| A. | 3 |
| B. | 15 |
| C. | 7 |
| D. | 4 |
| Answer» E. | |
| 1616. |
Convert 35 meter/sec into km/h? |
| A. | 126 |
| B. | 140 |
| C. | 130 |
| D. | 136 |
| Answer» B. 140 | |
| 1617. |
If 46N is divisible by 18, then what is the value of N? |
| A. | 2 |
| B. | 4 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 1618. |
A certain sum is divided among p, q and r in a manner that for every rupee that p gets, q gets 75 paise and for every rupee that q gets, r gets 50 paise. If r’s share in the total sum is ₹ 36, then find the share of p. |
| A. | ₹96 |
| B. | ₹72 |
| C. | ₹54 |
| D. | ₹60 |
| Answer» B. ₹72 | |
| 1619. |
Pick the odd thing out: |
| A. | 0.000001 |
| B. | 0.0001 |
| C. | 0.00001 |
| D. | 0.01 |
| Answer» D. 0.01 | |
| 1620. |
One fruit salad recipe requires 1/2 cup of sugar. Another recipe for the same fruit salad requires 2 tablespoons of sugar. If 1 tablespoon is equivalent to 1/16 cup, how much more sugar does the first recipe require? |
| A. | 1/8 cup |
| B. | 5/16 cup |
| C. | 3/8 cup |
| D. | 7/16 cup |
| Answer» D. 7/16 cup | |
| 1621. |
24 Sq. M = sq. Cm? |
| A. | 2400 |
| B. | 240000 |
| C. | 240 |
| D. | 2400000 |
| Answer» C. 240 | |
| 1622. |
If the number x4461 is divisible by 11, what is the face value of x? |
| A. | 5 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 1623. |
If 347P is divisible by 9, then what is the value of P? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 7 |
| Answer» D. 7 | |
| 1624. |
In a camp, there is a meal for 120 men or 200 children, If 150 children have taken the meal, how many men may be catered with the remaining meal? |
| A. | 20 |
| B. | 30 |
| C. | 40 |
| D. | 50 |
| Answer» C. 40 | |
| 1625. |
lf A = 1 × 2 × 3 ______ × 200 and B = 201 × 202 × 203 × 204, then find the LCM of A and B. |
| A. | 201 A |
| B. | A |
| C. | B |
| D. | AB |
| Answer» C. B | |
| 1626. |
411 + 412 + 413 + 414 is divisible by _______. |
| A. | 3 |
| B. | 7 |
| C. | 17 |
| D. | 9 |
| Answer» D. 9 | |
| 1627. |
How many zeroes are there at the end in product 213 × 510? |
| A. | 13 |
| B. | 10 |
| C. | 23 |
| D. | 33 |
| Answer» C. 23 | |
| 1628. |
How many numbers are there from 209 to 285 divisible by both 9 and 4? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 1629. |
If 4320 = 2a × 3b × 5c, then find the value of a, b and c. |
| A. | a = 5, b = 3, c = 2 |
| B. | a = 4, b = 3, c = 2 |
| C. | a = 5, b = 3, c = 1 |
| D. | a = 4, b = 3, c = 1 |
| Answer» D. a = 4, b = 3, c = 1 | |
| 1630. |
In the quadratic equation x2 + ax + b = 0, a and b can take any value from the set {1, 2, 3, 4}. How many pairs of values of a and b are possible in order that the quadratic equation has real roots? |
| A. | 6 |
| B. | 7 |
| C. | 8 |
| D. | 16 |
| Answer» C. 8 | |
| 1631. |
Find the HCF of 1048 and 1441 |
| A. | 11 |
| B. | 311 |
| C. | 131 |
| D. | 113 |
| Answer» D. 113 | |
| 1632. |
If the product and greatest common divisor of two numbers are 192 and 4 respectively, then least common multiple of these numbers will be: |
| A. | 24 |
| B. | 12 |
| C. | 56 |
| D. | 48 |
| Answer» E. | |
| 1633. |
Find the number of trailing zero in 234!. |
| A. | 56 |
| B. | 54 |
| C. | 58 |
| D. | 52 |
| Answer» B. 54 | |
| 1634. |
If a 10 - digit number 7220x558y2 is divisible by 88, then the value of (5x + 5y) is: |
| A. | 15 |
| B. | 35 |
| C. | 10 |
| D. | 25 |
| Answer» B. 35 | |
| 1635. |
A is a set of positive integers such that when divided by 2, 3, 4, 5 and 6 leaves the reminder 1, 2, 3, 4 and 5 respectively. How many integers between 0 and 100 belong to the set A? |
| A. | No integer |
| B. | One |
| C. | Two |
| D. | Three |
| Answer» C. Two | |
| 1636. |
If \(a=(\sqrt{2}+1), b = (\sqrt{2}-1)\), then the value of \(\dfrac{1}{(a+1)}+ \dfrac{1}{(b+1)}\) is |
| A. | 9 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» E. | |
| 1637. |
A two-digit number whose sum of digits is reverses when 63 is added to that number The number is : |
| A. | 18 |
| B. | 27 |
| C. | 36 |
| D. | 45 |
| Answer» B. 27 | |
| 1638. |
Find the LCM of 34, 51 and 68. |
| A. | 204 |
| B. | 136 |
| C. | 102 |
| D. | 238 |
| Answer» B. 136 | |
| 1639. |
In a keyboard, how many keystrokes are required to type numbers from 1 to 800? |
| A. | 3868 |
| B. | 3254 |
| C. | 2260 |
| D. | 2292 |
| Answer» E. | |
| 1640. |
If x × y denotes H.C.F of x and y, x @ y denotes LCM of x and y, then find the value of (72 × 84) @ 144. |
| A. | 504 |
| B. | 420 |
| C. | 144 |
| D. | 210 |
| Answer» D. 210 | |
| 1641. |
For two sets A and B, let AΔB denote the set of elements which belong to A or B but not both. If P = {1, 2, 3, 4}, Q = {2, 3, 5, 6,}, R = {1, 3, 7, 8, 9}, S = {2, 4, 9, 10}, then the number of elements in (PΔQ)Δ(RΔS) is |
| A. | 7 |
| B. | 6 |
| C. | 8 |
| D. | 9 |
| Answer» B. 6 | |
| 1642. |
A common factor of (527379 + 473379) and (527166 – 473166) is: |
| A. | 80 |
| B. | 120 |
| C. | 125 |
| D. | 175 |
| Answer» D. 175 | |
| 1643. |
Ram had Rs. 1000 in his Saving Bank Account. Every month in the first week he needs money, so he withdraws Rs. 500, but at the end of the month, he deposits Rs. 750. After how many months will the original amount grow three times? |
| A. | 6 Months |
| B. | 7 Months |
| C. | 8 Months |
| D. | 9 Months |
| Answer» D. 9 Months | |
| 1644. |
(13/14)th of 56 is |
| A. | 52 |
| B. | 58 |
| C. | 63 |
| D. | 72 |
| Answer» B. 58 | |
| 1645. |
If 727P is divisible by 8, then what is the value of P? |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» B. 4 | |
| 1646. |
A round archery target of diameter 1 m is marked with four scoring regions from the centre outwards as red, blue, yellow and white. The radius of the red band is 0.20 m. The width of all the remaining bands is equal. If archers throw arrows towards the target, what is the probability that the arrows fall in the red region of the archery target? |
| A. | 0.40 |
| B. | 0.20 |
| C. | 0.16 |
| D. | 0.04 |
| Answer» D. 0.04 | |
| 1647. |
A lake supplies water to a city. It is observed that the city consumes the same amount of water in the first and second months. The monthly rate of water consumption in the next four months is halved compared to the first two months. It was then observed that the remaining water in the lake is half of the initial original volume. The ratio of the volume of water consumed in the second month to the initial water of the lake is |
| A. | 1 : 6 |
| B. | 1 : 8 |
| C. | 1 : 12 |
| D. | 1 : 10 |
| Answer» C. 1 : 12 | |
| 1648. |
0.0000000000425 in the standard form is: |
| A. | 4.25 x 1010 |
| B. | 42.5 x 1010 |
| C. | 42.5 x 10-11 |
| D. | 4.25 x 10-11 |
| Answer» E. | |
| 1649. |
A man has 1935 buffalos and 9933 goats. He forms them into flocks. Keeping buffalos and goats separate and having the same number of animals in each flock. If these flocks are as large as possible, then the maximum number of animals in each flock and total number of flocks required for the purpose are _____ and ______, respectively |
| A. | 112; 12 |
| B. | 129; 92 |
| C. | 322; 92 |
| D. | 299; 45 |
| Answer» C. 322; 92 | |
| 1650. |
A man decides to pave, with square tiles of the same size, the floor of his hall which is 4.83 metres long and 5.67 metres wide. What is the side of the largest possible square tile (in cm)? |
| A. | 21 |
| B. | 42 |
| C. | 27 |
| D. | 23 |
| Answer» B. 42 | |