Question

How much perbcent above the cost price should shopkeeper mark his good so that after allowing discount 10% in the mp he gain 8%​

Answer 1

Answer:

let c.p. = 100 'rs

to gain 12% s.p. 112 rs

for allowing 20 % discount, 80 % of m.p.= s.p.

so , m.p. = 140 rs

so he should mark 40 % above the cost price