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Direct Variation

The cost of ...

Question

The cost of $12$ balls is Rs $19.20$ , the cost of 15 balls is Rs.

A

24

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B

25

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C

26

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D

23

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Solution

The correct option is A 24
Cost of $12$ balls $= R s .19 .20$

Cost of $15$ balls $= \frac{R s .19 .2 \times 15}{12} = R s .24$

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