Question

A shopkeeper bought locks at the rate of 6 lacs for rupees 225 and sold them at the rate of 8 locks for 380 find the profit percentage​

Answer 1

Answer 90 locks

Cost price for a lock=34/8 =4.25

Selling price for a lock =57/12 =4.75

Profit=4.75*4.25=0.50

Profit%=0.50/4.25*100=11.76

Profit is 0.50 for a lock

When selling two lock we get one rupees

To get 45 RS profit =2*45=90

90 locks is the answer