Choose the correct answer from the alternatives given.
Twenty eight pairs of trousers quoted at Rs. 23,800 are available at discount of 20%. How many pairs of trousers can be bought for RS. 8,160?

10 pairs

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12 pairs

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15 pairs

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18 pairs

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Solution

The correct option is B 12 pairs
Cost price of a pair of trouser = $\frac{0.8 \times 23800}{28}$ = $R s . 680$

Hence, required number of pairs = $\frac{8160}{680}$ = $12$

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