Explore topic-wise MCQs in Quantitative Aptitude.

This section includes 71 Mcqs, each offering curated multiple-choice questions to sharpen your Quantitative Aptitude knowledge and support exam preparation. Choose a topic below to get started.

51.

If a: b = c : d = e : f = 1 : 2 then (3a + 5c + 7e) : (3b + 5d + 7f) = ?

A. 1 : 2
B. 2 : 3
C. 3 : 4
D. 4 : 5
Answer» B. 2 : 3
52.

If 32 students in a class are females and the ratio of female to male students is 16 : 9, then what percentage of the class is female ?

A. 51 %
B. 55 %
C. 57 %
D. 64 %
Answer» E.
53.

If a : b = b : c then a4 : b4 = ?

A. a2 : b2
B. a2 : c2
C. b2 : c2
D. a3 : b3
Answer» C. b2 : c2
54.

Rs. 6400 are divided among three workers in the ratio 3/5 : 2 : 5/3. The share of the second worker is

A. Rs. 2000
B. Rs. 2500
C. Rs. 3000
D. Rs. 3500
Answer» D. Rs. 3500
55.

If 20% of (P + Q) = 50% of (P - Q), then P:Q = ?

A. 3 : 2
B. 5 : 4
C. 7 : 2
D. 7 : 3
Answer» E.
56.

In a class, the number of girls is 20% more than that of boys. The strength of the class is 66. If 4 more girls are admitted to the class, what will be the ratio of the number of boys to that of the girls ?

A. 2 : 3
B. 3 : 4
C. 3 : 5
D. 5 : 7
Answer» C. 3 : 5
57.

The ratio between two numbers is 3 : 4. If each number is increased by 6, the ratio becomes 4 : 5. The difference between the number is

A. 6
B. 9
C. 11
D. 13
Answer» B. 9
58.

Three equal glasses are filled with mixtures of spirit and water. The ratio of spirit and water is : 1st glass = 3:4, 2nd glass = 4:5 and 3rd glass = 5:6. The contents of three glasses are emptied into a single vessel. What is the ratio of spirit to water in the mixture now ?

A. 820 : 1059
B. 860 : 1132
C. 920 : 1159
D. 970 : 1205
Answer» D. 970 : 1205
59.

If A : B : C = 2 : 3 : 4 then A/B : B/C : C/A = ?

A. 8 : 9 : 24
B. 9 : 11 : 19
C. 11 : 13 : 20
D. 13 : 15 : 22
Answer» B. 9 : 11 : 19
60.

If 1/x : 1/y : 1/z = 2 : 3 : 5 then x:y:z = ?

A. 15 : 10 : 6
B. 15 : 15 : 8
C. 20 : 10 : 8
D. 20 : 15 : 6
Answer» B. 15 : 15 : 8
61.

The ratio of incomes of A and B is 5 : 3 and that of their expenditures is 9 : 5. If they save Rs. 2600 and Rs. 1800 respectively, then their incomes are

A. Rs. 5000, Rs. 3900
B. Rs. 6000, Rs. 4200
C. Rs. 8000, Rs. 4800
D. Rs. 9000, Rs. 5100
Answer» D. Rs. 9000, Rs. 5100
62.

Three numbers are in the ratio 3:4:5. The sum of the largest and the smallest equals the sum of the third and 52. The smallest number is

A. 36
B. 39
C. 42
D. 47
Answer» C. 42
63.

A mixture contains milk and water in the ratio 5 : 1. On adding 5 liters of water, the ratio of milk to water becomes 5 : 2. The quantity of milk in the original mixture is

A. 25 liters
B. 29 liters
C. 33 liters
D. 37 liters
Answer» B. 29 liters
64.

In a mixture of 60 liters, the ratio of milk and water is 2 : 1. If the ratio is to be 1 : 2, the quantity of water to be further added is

A. 30 liters
B. 40 liters
C. 50 liters
D. 60 liters
Answer» E.
65.

In an alloy, the ratio of copper and zinc is 5 : 2. If 1.250 Kg of zinc is mixed in 17 Kg 500 gm of alloy, then the ratio of copper and zinc in the alloy will be

A. 2 : 1
B. 2 : 3
C. 3 : 4
D. 3 : 5
Answer» B. 2 : 3
66.

Two vessels A and B contain milk and water mixed in the ratio 5 : 3 and 2 :3. When these mixtures are mixed to form a new mixture containing half milk and half water, they must taken in the ratio

A. 1 : 3
B. 3 : 5
C. 4 : 5
D. 5 : 7
Answer» D. 5 : 7
67.

A bag contains Rs. 216 in the form of one rupee, 50 paise and 25 paise coins in the ratio of 2 : 3 : 4. The number of 50 paise coins is

A. 133
B. 136
C. 144
D. 149
Answer» D. 149
68.

The monthly income of A and B are in the ratio 2 : 3 and their monthly expenses are in the ratio 5 : 9. If each of them saves Rs. 600 per month, then their monthly incomes are

A. Rs. 1600, Rs. 2400
B. Rs. 1650, Rs. 2200
C. Rs. 1800, Rs. 2600
D. Rs. 1950, Rs. 2750
Answer» B. Rs. 1650, Rs. 2200
69.

If y varies directly as (x + 4) and y = 6 when x = 1. What is the value of y when x = 2 ?

A. 36/5
B. 37/9
C. 41/7
D. 43/5
Answer» B. 37/9
70.

The expenses on rice, fish and oil of a family are in the ratio of 12 : 17 : 3. The prices of these articles are increased by 20%, 30% and 50% respectively. The total expenses of the family are increased by

A. 25½ %
B. 28(1/8) %
C. 29¾ %
D. 31(1/5) %
Answer» C. 29¾ %
71.

Two numbers are in the ratio 1½ : 5(2/3). When each one of these is increased by 15, their ratio become 1(2/3) : 2½ . The smaller of the number is

A. 21
B. 24
C. 25
D. 27
Answer» E.