Question

A shopkeeper sold two old televisions each for 4,500
On one he gained 20% and on the other he lost 20%.
Find his gain or loss per cent in whole transaction.​

Answer 1

Step-by-step explanation:

Selling price of watch A and watch B= Rs. 425

Let cost price of watch A=x

Profit =10%

∴

100

110

x=425

x=386.36

Let cost price of watch B=y

Loss =10%

∴

100

90

y=425

y=472.22

Net cost price =x+y=858.5858

Net selling price =850

Loss%=

858.58

858.5858−850

×100=1%