How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 9

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IMPORTANT

Earn 100

The average weight of $3$ boys $A, B$ and $C$ is $74 k g$ . Another boy $D$ joins the group and the average now becomes $70$ $k g$ . If another boy $E$ , whose weight is $3$ $k g$ more than that of $D$ , replaces $A$ then the average weight of $B, C, D$ and $E$ becomes $75$ $k g$ . The weight of $A$ is

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Important Questions on Average

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 10

The mean temperature of Monday to Wednesday was

35 ° C

and of Tuesday to Thursday was

30 ° C

. If the temperature on Thursday was

\frac{1}{2}

that of Monday, the temperature on Thursday was

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 11

Five years ago, the average age of

A, B

and

C

was

25

years and that of

B

and

C

10

years ago was

20

years.

A' s

present age is

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 12

Ganguly has a certain average for

4

innings. In the

5^{t h}

inning, he scores

40

runs thereby increasing his average by

4

runs. His new avearge is

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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 13

The average of the first six multiples of

5

is

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 14

There are three fractions

A, B

and

C

. If

A = \frac{1}{5}

and

B = \frac{1}{8}

and the average of

A, B

and

C

is

\frac{1}{10}

. What is the value of

C

?

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 15

The marks obtained by Alan in Mathematics, English and Biology are respectively

90

out of

100

,

70

out of

150

and

150

out of

200

. Find his average score in percent.

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CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 16

The average monthly expenditure of a family was

₹ 2250

for the first

3

months,

₹ 2150

for the next

3

months and

₹ 5750

for the next

3

months. Find the average income of the family for the

9

months, if they save

₹ 500

per month.

EASY

CAT

IMPORTANT

How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 17

The average age of a family of

5

members is

20

years. If the age of the youngest member be

5

years, what was the average age of the family at the birth of the youngest member?