Question

15. 15 envelopes cost 10.50 (a) How many envelopes of same kind can be bought for 70? (b) What will be the cost of 35 such envelopes?​

Answer 1

According to the question,

The cost of 15 envelopes =Rs. 37.50

So,

The number of envelopes in Rs. 300

=15×

37.50

300

=120

Hence, this is the answer.

Answer 2

Answer:

1. Cost of 15 envelopes = 10.5 rupees

Cost of 1 envelope = 10.5/15 = 0.7

At Rs 70 no. of envelopee can be bought =

70/.7 100

Cost of 35 envelope = 35x0.7= rs 24.5

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