Question

the cost of 15 envelope is rs 11.25 .what will be the cost of 20;envelope​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

cost of 15 envelopes = 11.25

Cost of 1 envelope = ( Cost of 15 envelopes)/15

Cost of 1 envelope = 11.25/15

Cost of 1 envelope = Rs 0.75

hence, Cost of 20 envelopes = 20 × Cost of 1 envelope = 20 × 0.75 = Rs 15.

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