if the cost of a dozen pens is Rs 256.56 what will be cost of 20 such pens ?
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if the cost of a dozen pens is Rs 256.56 what will be cost of 20 such pens ?
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Cost of dozen {12} pens = Rs 256.56
cost of 1 pen = Rs 256.56/12
= Rs 21.38
Cost of 20 pens = 20 × 21.38
= 427.6
Hence, the cost of 20 such pens will be Rs 427.6