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If one score oranges cost Rs. 45, how many oranges can be bought for Rs. 72?

( $1 score = 20$ )

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answer is B.

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Detailed Solution

Concept- Firstly, find the cost of each orange, and then calculate the no. of oranges that can bought for Rs. 72 (dividing Rs. 72 by cost of each orange)
Given: Cost of each score of oranges = Rs. 45
1 score = 20 units
Cost of each orange

= \frac{Cost of each score}{no . of units in each score}

= \frac{45}{20}

= \frac{9}{4}

Cost of 1 orange is Rs.

\frac{9}{4}

Therefore, the no. oranges than can be bought in Rs. 72

= \frac{Rs . 72}{Cost of each orange}

No. of oranges

= \frac{72}{\frac{9}{4}}

= \frac{\frac{72}{1}}{\frac{9}{4}}

= \frac{72 \times 4}{9}

= 32

So, the no. of oranges that can be bought are 32.
Hence, the correct option is 2.

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