Question

17. One gross poster colors were bought for 10368 and sold for 80 each. What is the gain or loss %?
18. One gross exercise books were bought for 4320. They were sold at 60 each. What is the
gain or loss %?​

Answer 1

17. One gross poster colors were bought for 10368 and sold for 80 each.

One gross = 144 items

Cost price of 144 poster colors = Rs. 10368

Cost price of 1 poster colors = Rs. 10368/144

Cost price of poster colors = CP = Rs. 72

Selling price of poster colors = SP = Rs. 80

Since SP > CP

Profit  = SP - CP

= 80 - 72

= 8

Profit% = Profit/CP × 100

= 8 / 72 × 100

∴ Profit% = 11.11%

18. One gross exercise books were bought for 4320. They were sold at 60 each.

One gross = 144 items

Cost price of 144 exercise books = Rs. 4320

Cost price of 1 exercise books = Rs. 4320/144

Cost price of exercise books = CP = Rs. 30

Selling price of exercise books = SP = Rs. 60

Since SP > CP

Profit  = SP - CP

= 60 - 30

= 30

Profit% = Profit/CP × 100

= 30 / 30 × 100

∴ Profit% = 100%