1.A dealer buys some pens from a wholesaler at the rate of 30 per pen

1.	1.A dealer buys some pens from a wholesaler at the rate of 30 per pen and marked them at 40 each.How much discount he should allow to get a profit of 20%?
Answer» Given the C.P = 30 now to make 20% profitthe S.P should be - C.P +20% of CP=> S.P = 1.230 = 36 rs But he has marked S.P as 40rs so, the discount which he should give is (40-36)%/40 % discount = 4100/40 = 10%

1.A dealer buys some pens from a wholesaler at the rate of 30 per pen and marked them at 40 each.How much discount he should allow to get a profit of 20%?

Answer»

Given the C.P = 30

now to make 20% profitthe S.P should be - C.P +20% of CP=> S.P = 1.2*30 = 36 rs

But he has marked S.P as 40rs

so, the discount which he should give is (40-36)%/40

% discount = 4*100/40 = 10%