Question

a dealer buys 1500 steel screws at rs.8 a dozen;he sells 9ooof them at two for rs.3 and the rest at three for rs.4.find his gain per cent.

Answer 1

No of screws -1500
Cost for one dozen-8
Cost for 1500 screws - (1500/12)8 =1, 000
Selling price of 900 screws - (900/2)3=1, 350
Selling price of 600 screws - (600/3)4=800
Total selling price - 1350+800=2150
Profit - 2150-1000=1150
Gain percent -(1150/1000)100=115%

Answer 2

Answer:

No of screws -1500

Cost for one dozen-8

Cost for 1500 screws - (1500/12)8 =1, 000

Selling price of 900 screws - (900/2)3=1, 350

Selling price of 600 screws - (600/3)4=800

Total selling price - 1350+800=2150

Profit - 2150-1000=1150

Gain percent -(1150/1000)100=115%