Question

5. The cost of 15 envelopes is 237.50. How many envelopes can be bought for 300? What will be the cost
of 20 envelopes?
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Answer 1

Answer:

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Step-by-step explanation:

Cost of 15 envelopes = 37.50Rs

∴ Cost of 1 envelope = 37.50/15 = 2.5Rs

Now, Cost of 20 envelopes = 2.5*20 = 50Rs

37.50Rs = 20 envelopes

∴ 1Rs = 20/37.50

∴ 300Rs = 20*300/37.50 = 160