Question

if the cost of a dozen pens is Rs 256.56 what will be cost of 20 such pens ?​

Answer 1

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

Answer 2

Answer:

Cost of dozen pens = Rs. 180

Cost of 1 pen 12 = 180/12 = Rs. 15

Cost of 8 ball pen = Rs . 56

Cost of a ball pen = 56 / 8 = Rs. 7

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