Explore topic-wise MCQs in Maths.

This section includes 170 Mcqs, each offering curated multiple-choice questions to sharpen your Maths knowledge and support exam preparation. Choose a topic below to get started.

151.

If the positions of the digits of a two-digit number are interchanged, the number obtained is smaller than the original number by 27. If the digits of the number are in the ratio of 1 : 2, what is the original number?

A. 36
B. 63
C. 48
D. Cannot be determined
E. None of these different.
Answer» C. 48
152.

Speed of a man in still water is 15 kmph , while river is flowing with a speed of 3 kmph and time taken to cover a certain distance upstream is 3 hours more than time taken to cover the same distance downstream . Find the distance.

A. 115 Km
B. 96 Km
C. 108 Km
D. 72 Km
Answer» D. 72 Km
153.

Three numbers are in the ratio of 5: 6: 7. If the product of those numbers is 5670 then the largest number is-

A. 15
B. 18
C. 21
D. 28
Answer» D. 28
154.

Of the three numbers, the ratio of the first and the second is 8 : 9 and that of the second and third is 3 : 4. If the product of the first and third number is 2400. then the second number is:

A. 24
B. 40
C. 45
D. 10
Answer» D. 10
155.

Sunil, Karim and Mohan are invested a certain amount in the ratio 1: 2: 3 and the ratio of investment at the end of year is 3 : 8: 18. Find the ratio of time for which they invested ?

A. 3:4:6
B. 4:5:6
C. 6:7:8
D. 7:8:9
E. None of these
Answer» B. 4:5:6
156.

The ratio between the boys and girls in a class is 6:5 respectively. If 8 more boys join the class and two girls leave the class then the respective ratio become 11:7. What is the number of boys in the class now?

A. 28
B. 38
C. 44
D. 36
E. None of these
Answer» D. 36
157.

Rs. 425 is divided among 4 men, 5 women and 6 boys such that the share of a man , a woman and a boy may be ratio of 9:8:4. What is the share of a woman?

A. Rs. 24
B. Rs. 28
C. Rs. 32
D. Rs. 34
Answer» E.
158.

What must be added to two numbers that are in the ratio of 3:4, so that they become in the ratio 4:5?

A. 0.5
B. 1
C. 2
D. 4
Answer» C. 2
159.

A sum is divided among 120 men and some women in the ratio 15:21. If each man gets Rs. 5 and each woman gets Rs. 4, the number of women is

A. 220
B. 200
C. 190
D. 210
Answer» E.
160.

If $$ {a over 3}={b over3}={c over4}$$ then find the value of $$ {a+b+c over c}$$.

A. $$ {5 over 8}$$
B. $$ {5 over 2}$$
C. $$ {5 over 7}$$
D. $$ {9 over 8}$$
Answer» C. $$ {5 over 7}$$
161.

If (a + b) : (b + c) : (c + a) = 6 : 7 : 8 and a + b +c =14, then the value of c=

A. 6
B. 7
C. 8
D. 14
Answer» B. 7
162.

The sum of the squares of three numbers is 532 and the ratio of the second and also of the second to the third is 3 : 2 . What is the second number?

A. 10
B. 8
C. 12
D. 14
Answer» D. 14
163.

The ratio of the age of a son and father is 1: 4. After 9 years, the ratio will be 2: 5. What is the present age (in years) of the son?

A. 10
B. 8
C. 9
D. 12
Answer» D. 12
164.

If three persons A, B and C invested in a business in the ratio 10 : 15 : 8 for 8 months, 6 months and 12 months respectively. If the total profit earned at the end of the year is Rs.2660 find the Share of B (in Rs.) in the total profit-

A. 1200
B. 800
C. 900
D. 750
E. 945
Answer» D. 750
165.

The salary of P, Q and R are in the ratio of 3 : 4 : 5. The salary of P, Q and R together is Rs. 33600 by what per cent is the salary of R more than that of P ?

A. $$ {66{2 over3}{ %}}$$
B. $$ {68{1 over3}{ %}}$$
C. 64 %
D. None of these
E. $$ {69{1 over3}{ %}}$$
Answer» B. $$ {68{1 over3}{ %}}$$
166.

Find the mean proportional between 8 and 98.

A. 112
B. 28
C. 16
D. 53
Answer» D. 53
167.

A bag contains rupee, 50 - paise and 25 - paise coins in the ratio 2 : 3 : 4. If the total amount in the bag is Rs . 45, find the number of 50 - paise coins.

A. 30
B. 40
C. 20
D. 10
Answer» B. 40
168.

If 35% of a number is subtracted from the second number the second number reduces to its four fifths. What is the ratio the first number to the second number?

A. 4 : 7
B. 4 : 9
C. 5 : 9
D. 5 : 7
E. 6 : 7
Answer» B. 4 : 9
169.

If 8, X and 50 are in continued proportion, then the value of x is

A. 30
B. 20
C. 5
D. 32
Answer» C. 5
170.

The income of P and Q are in the ratio 3:2 and their expenditures are in the ratio 3:2 and their expenditures are in the ratio 5:3. If each saves Rs. 2,000. What is their income?

A. 24,000 & 16,000
B. 12,000 & 8,000
C. 10,000 & 8,000
D. 15,000 & 10,000
Answer» B. 12,000 & 8,000