Here are some of the questions collected from various sources related to Quantitative Aptitude Preparation.

1.) The average marks of 14 students was 71.It was later found that the marks of one of the students has been wrongly entered as 42 instead of 56 and of another as 74 instead of 32.What is the correct average?

A.) 71

B.) 67

C.) 68

D.) 69

2.) Average age of seven persons in a group is 30 years, the average age of five persons of this group is 31 years .What is the average age of the other two persons in the group?

A.) 15 years

B.) 26 years

C.) 55 years

D.) None of these.

3.) The distance between two points

(-5,0) and (7,0) is

A.) 12 units

B.) 13 units

C.) 7 units

D.) 5 units

4.) The LCM of two numbers is 12 times their HCF.The sum of the HCF and LCM is 403 .If one of the number is 93, then the other is

A.) 112

B.) 116

C.)124

D.) 120

5.) One-fifth of half of a number is 20 .Then 20% of that number is

A.) 20

B.) 80

C.) 60

D.) 40

6.) 15 men can finish a work in 20 days , however it takes 24 women to finish it in 20 days.If 10 men and 8 women undertake to complete the work , then they will take

A.) 10 days

B.) 15 days

C.) 20 days

D.) 30 days

7.) If a^2 = a +1 , then the value of a^3 -2a is

A.) 2

B.) -1

C.) 0

D.) 1

8.) 8 : 64 :: 27 : ?

Find the missing term (?)

A.) 64

B.) 125

C.) 81

D.) 212

9.) 27:9 ::64 😕

A.) 16

B.) 20

C.) 12

D.) 8

10.) 4 :20 ::6: ?

A.) 8

B.) 36

C.) 12

D.)42

11.) Find the missing term (?) in the sequence.

15, 21,57,?,221

A.) 96

B.) 126

C.) 121

D.) 108

12.) The GCM of two numbers of 3 digits is 310 and their LCM is 1860.The numbers are

A.) 310 ,930

B.) 620,633

C.) 620,930

D.) None of these.

13.) Each edge of a cube is increased by 50%.The percent increase in the surface area will be

A.) 50%

B.) 125%

C.) 150 %

D.) None of these

14.) If the radius of a circle is increased by 100% , then the area is increased by

A.) 400%

B.) 300 %

C.) 200 %

D.) None of these

15.) The value of 247^ 2 – 147^2 is equal to

A.) 39400

B.) 3940

C.) 30940

D.) 34900

16.) If 56^2 -51^2 = 5 P , then the value of P is

A.) 6

B.) 111

C.) 107

D.) 97

17.) Find the value of K in the number 5K3457 , so that it is divisible by 11.

A.) 1

B.) 2

C.) 3

D.) 5

18.) Find the value of P in number 34P7 , so that it is completely divisible by 9

A.) 2

B.) 0

C.) 3

D.) 4

19.) Find the missing number (?)

1 , 1, 2,3,5,8,13,21, ?

A.) 30

B.) 24

C.) 37

D.) 34

20.) If blue is called green , green is called violet , violet is called white, white is called black and black is called blue, then what is the colour of swam ?

A.) White

B.) Black

C.) Blue

D.) Green

21.) If the length of a rectangle is halved and the breadth is tripled, by how much % does the area of the rectangle increase?

A.) 20%

B.) 30%

C.) 50%

D.)100%