Question

9. 35 inland letters cost 87.50. How many such letters can we buy for 315?
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Answer 1

Answer:

if 35 letters cost rupees 87.50

the cost of a 1 letter will be 87.50/35

=2.5

the number of letters that can be bought for rupees 315 would be

315/2.5 =126

hope it helps you mate