B) The marked price of a calculator is Rs 1,800. The shopkeeper allows 10 % discount and still makes 8 % profit. At what price did the shopkeeper purchase
the calculator?

m.p=rs1800

discount=10%

discount amount=discount%of mp=10/100×1800=rs180

profit=8%

sp=mp-discount=1800-180=1620

cp=sp-profit%ofcp

cp+profit%ofcp=sp

cp+8/100×cp=1620

cp(1+8/100)=1620

cp=1620/1.08=1500

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

step-by-step explanation: