Question

how much percent above the cost price should A shopkeeper marks his goods so that after allowing a discount of 20% he still earns a profit of 20%

Answer 1

the Shopkeeper must keep mark price 40%above

supposed, he bought a good for ₹100 ,
so he want 20%profit
so he must sold it for 120₹
but he mark 20% discount
120/100 +20/100
=140/100
=40%

Answer 2

Answer:

Step-by-step explanation: