A fruit seller sold big medium and small sizes apples of…

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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.

  1. A. 8
  2. B. 10
  3. C. 9
  4. D. 7

Answer: Option C

Here is complete explanation of A fruit seller sold big medium and small sizes apples of….

Solution(By ExamCraze Team)

Let the no. of apples be 3x, 2x and 5x
∴ Average Cost
$$eqalign{ & = frac{{3x times 15 + 2x times 10 + 5x times 5}}{{3x + 2x + 5x}} cr & = frac{{45x + 20x + 25x}}{{10x}} cr & = frac{{90x}}{{10x}} cr & = {text{Rs}}{text{.}},{text{9}} cr} $$

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