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SSC CGL Tier 1

IMPORTANT

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The average salary of all workers in a factory is $Rs . 6000$ . Out of these workers $150$ are technicians whose average salary is $Rs . 12000$ and the average salary of the remaining workers is $Rs . 3750$ . How many workers are in all there in the factory ?

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Important Questions on Average

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 9

A class consists of two sections A and B consisting of

36

and

40

students respectively. In an examination in Mathematics, the average marks obtained by section A is

75

and that of the whole class is

64.5

. What is the average marks obtained by section B?

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 10

The average weight of

25

students is

28.8 kg

. By the admission of a new student the average weight decreases by

300

grams. What is the weight of the new student?

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 11

The average of

8

results is

20 .

Out of these, the average of first two results is

15 \frac{1}{2}

and the average of next three results is

21 \frac{1}{3}

. The sixth result is

4

less than the seventh and

7

less than the

8 th

. What is the last result?

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 12

Continuously for

15

days, the average income of a man was

Rs . 140

per day. If for the first

5

days, the average income be

Rs . 125

per day and for the last

9

days, the average income be

Rs . 145

per day, what was his income for the 6th day?

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 13

In a competitive examination for some posts

750

candidates appeared and their average marks were

48

. The average marks obtained by successful candidates were

78

and the average marks for the unsuccessful candidates were

42

. How many percent of the candidates were successful in this examination?

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 14

In a group of some people type A consists of businessmen and type B that of service men. The average age of the whole group is

27

years. If the average age of type A be

34

years and that of type B be

24

years, find the percentage of each type in the whole group.

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SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>EXERCISE 6B>Q 15

A ship is at a distance of

40 km

from sea-shore. A hole is created in it through which water enters at the rate of

1 \frac{7}{8}

tons per

6

minutes. 60 tons of water is sufficient for its sinking. But, there is an outlet in the ship which throws out water at the rate of

12

tons per hour. What must be the average speed of the ship by which he may reach the bank safely?

EASY

SSC CGL Tier 1

IMPORTANT

Arithmetic Subjective and Objective for Competitive Examinations>Chapter 6 - Average>Exercise>Q 1

The average of first

50

natural numbers is :

The average salary of all workers in a factory is Rs.6000. Out of these workers 150 are technicians whose average salary is Rs.12000 and the average salary of the remaining workers is Rs.3750. How many workers are in all there in the factory ?

Important Questions on Average

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The average salary of all workers in a factory is $Rs . 6000$ . Out of these workers $150$ are technicians whose average salary is $Rs . 12000$ and the average salary of the remaining workers is $Rs . 3750$ . How many workers are in all there in the factory ?