Question

how much percent above the cost price should the shopkeeper mark his goods so that after after allowing a discount of 10% on the marked price he still gains 8%

Answer 1

let the cp be x
for a gain of 8% the profit will be 0.08x
so, sp will be x+0.08x=1.08x

Now to give discount of 10 %
marked price will be 1.08x + 10% of 1.08x
or, 1.08x+0.1×1.08x
= 1.08x+0.108x =1.188x

so, the required percentage will be 1.188x-x /x ×100
i.e., 0.188x/x ×100=18.8% answer.

Thanks.

Answer 2

Answer:

120

Step-by-step explanation:

let the cost price be 100rupees

gain=8%

selling price =108

let the marked price be x rupees

then discount= 10%of x

=(x ×10/100)= x/10

SP= (mp) -(discount)

=(x-x/10) = 10x-x /10

= 9x/10

now we put the sp= 9x/10=108

x= 108×10/9

x = 120 ans