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Quantitative Aptitude Practice Arithmetic Aptitude Study Material

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Average Weight Height & Marks

Find the average of first 30 multiples of 8.

a) 126
b) 124
c) 128
d) 132

✔Answer

Correct Answer Is : 124

Solution Is :

The average marks obtained by the students of a class are 68.Of the average of marks obtained by the girls is 80, and that of the boys is 60.Find out the % of boys in the class ?

a) 40
b) 60
c) 65
d) 70

✔Answer

Correct Answer Is : 60

Solution Is :

A students write a number as 54 in place of 45, in finding the average of 5 number ,As a result of which the average is 52.What is the actual average of these 5 numbers?

a) 54
b) 50.2
c) 70.4
d) 100

✔Answer

Correct Answer Is : 50.2

Solution Is :

The average age of A,B and C was 25 years before 4 years, And the average age of B and C was 20 years before 5 years. What is the present age of A ?

a) 60 years
b) 37 years
c) 62 years
d) 15 years

✔Answer

Correct Answer Is : 37 years

Solution Is :

The average age of 20 boys of a class is 12 years. If 5 new boys ,whose average age is 7 years take a admission in the class then what is the average age of all the boys in the class.

a) 11 × 1/2 years
b) 11 years
c) 21× 1/18 years
d) 91 × 9/2 years

✔Answer

Correct Answer Is : 11 years

Solution Is :

The average marks obtained in maths by 28 a students is 50.8 students dropped the school and then the average marks obtained by the remaining students increase by 5. What is the average marks obtained by the students which dropped the school ?

a) 50.5
b) 37.5
c) 42.5
d) 45

✔Answer

Correct Answer Is : 37.5

Solution Is :

Out of 4 numbers the average of first three number is 3 times than that of the 4th number. If the average of all 4 number is 5, than find out the 4th number ?

a) 4.5
b) 5
c) 2
d) 4

✔Answer

Correct Answer Is : 2

Solution Is :

The average age of students of a school is 6 years and the average age of 12 teachers is 40 yers.If the average age of all teachers and students together is 7 years. Then find out the numbers of students in the school ?

a) 396
b) 400
c) 408
d) 416

✔Answer

Correct Answer Is : 396

Solution Is :

In three numbers first number is twice of second and second number is twice of third. If the average of these three number is 105.Then find out the largest of these three numbers.

a) 120
b) 150
c) 180
d) 300

✔Answer

Correct Answer Is : 180

Solution Is :

A batsman makes a score of 99runs in the 28th innings and thus increase his average by 2.25 runs. What his average after 28th inning ?

a) 38.25
b) 37.25
c) 39
d) 67

✔Answer

Correct Answer Is : 38.25

Solution Is :

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❑Number System
❑Time Work & Wages
❑Alligation or Mixture
❑Average Weight Height & Marks
❑Ages
❑Time Distance & Speed
❑Ratio & Proportion
❑Probability
❑Permutation and Combination
❑Sets and their Representations
❑BODMAS Rule Fractions Surds and Indices
❑Percentage Discount
❑Profit and Loss
❑Simple Compound Interest & Installments

❏Computer Practice +

❏English Practice +

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❏Logical Reasoning Practice +

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Quantitative Aptitude Practice Arithmetic Aptitude Study Material

Average Weight Height & Marks

Find the average of first 30 multiples of 8.

Correct Answer Is : 124

Solution Is :

The average marks obtained by the students of a class are 68.Of the average of marks obtained by the girls is 80, and that of the boys is 60.Find out the % of boys in the class ?

Correct Answer Is : 60

Solution Is :

A students write a number as 54 in place of 45, in finding the average of 5 number ,As a result of which the average is 52.What is the actual average of these 5 numbers?

Correct Answer Is : 50.2

Solution Is :

The average age of A,B and C was 25 years before 4 years, And the average age of B and C was 20 years before 5 years. What is the present age of A ?

Correct Answer Is : 37 years

Solution Is :

The average age of 20 boys of a class is 12 years. If 5 new boys ,whose average age is 7 years take a admission in the class then what is the average age of all the boys in the class.

Correct Answer Is : 11 years

Solution Is :

The average marks obtained in maths by 28 a students is 50.8 students dropped the school and then the average marks obtained by the remaining students increase by 5. What is the average marks obtained by the students which dropped the school ?

Correct Answer Is : 37.5

Solution Is :

Out of 4 numbers the average of first three number is 3 times than that of the 4th number. If the average of all 4 number is 5, than find out the 4th number ?

Correct Answer Is : 2

Solution Is :

The average age of students of a school is 6 years and the average age of 12 teachers is 40 yers.If the average age of all teachers and students together is 7 years. Then find out the numbers of students in the school ?

Correct Answer Is : 396

Solution Is :

In three numbers first number is twice of second and second number is twice of third. If the average of these three number is 105.Then find out the largest of these three numbers.

Correct Answer Is : 180

Solution Is :

A batsman makes a score of 99runs in the 28th innings and thus increase his average by 2.25 runs. What his average after 28th inning ?

Correct Answer Is : 38.25

Solution Is :

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