###
**A fruit seller sold big, medium and small sizes apples of Rs. 15, Rs. 10 and Rs. 5, respectively. The total number of apples sold were in the ratio 3 : 2 : 5. Find the average cost of an apple.**

A. 8
B. 10
C. 9
D. 7
**Answer: Option C**

## Show Answer

Solution(By Apex Team)

Let the no. of apples be 3x, 2x and 5x
∴ Average Cost
$\begin{array}{l}=\Large\frac{3x\times15+2x\times10+5x\times5}{3x+2x+5x}\\
=\Large\frac{45x+20x+25x}{10x}\\
=\Large\frac{90x}{10x}\\
=\text{ Rs. }9\end{array}$

## Related Questions On Average

### Ajit has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average19 people went to a hotel for combine dinner party 13 by 8 runs. His new average is:

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C. 28

D. 32

### Find the average of all the numbers between 6 and 34 which are divisible by 5.

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### If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is.

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C. 4a = 5b = c

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