Gujarati
Hindi
4.Average
medium

The average of $5$ quantities is $6 .$ The average of three of them is $8 .$ What is the average of remaining two quantities?

A

$2$

B

$5$

C

$9$

D

$7$

Solution

Let the average of remaining two quantities is $y$.

According to the question

$\frac{3 \times 4+2 \times y}{5}=6 \Rightarrow 12+2 y=30 \Rightarrow y=9$

Hence the average of remaining two quantities is $9.$

Standard 13
Quantitative Aptitude

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