Question

A shopkeeper bought 80 chairs for rupees 50 each. He sold 20 of them at a 5% gain. At what gain percent must he sell them so as to gain 10% on the whole​

Answer 1

Answer:

His cost price is =80×50=4000

If he wants 10% overall gain then he should get 4400 by selling 80 chairs

He has sold 20 chairs at 5% profit

Price of 20 chairs =20×50= 1000

He has gained 5% on this

That means he has got 1050

To get 4400 he has to get 4400-1050= 3350 by selling remaining 60 chairs of cost price 50×60=3000

So on 3000 he has to get 3350-3000= 350 profit

% profit=(350/3000)×100=35/3%=12%(approximately)

So to get overall 10% profit he has to sell the remaining 60 chairs in 12% profit