Question

Find the cost of 60 envelope is rupee 108,find the cost of 80 such envelope. Also find how many envelope can be bought for rupee 180.​

Answer 1

Answer:

the cost of 80 envelope is 144

And we can buy 100 envelope in rupees 180.

explanation:

Cost of 60 envelope is 108

Cost of 1 envelope is 108/60=1.8

So cost of 80 envelope is 80*1.8=144

For in 180 rupees we have to divide 180 by 1.8 which gives answer 100