Question

on selling a watch for rupee 11400 ,a shopkeeper loses 5percent . for how much did he purchase it

Answer 1

c.p= 100/100-loss℅ * s.p
so , c.p of watch =100/100-5*11400
= 100/95*11400
= 12000
hence , c.p of watch =Rs 12000.
hope it helps you!

Answer 2

let 100%=x
95%=11400
95x=11400×100
5x=600×100
x=120×100
x=12000 is answer