Question

Find the gain or loss in %
A) When a radio which costs rs 400 is sold for rs 420
B) When a book which costs rs 20 is sold for rs 18

Answer 1

• In first case

→ Cost price = Rs.400

→ Selling price = Rs.420

• Profit = S.P - C.P
• Profit = 420 - 400 = Rs.20

→ Profit % = Profit/C.P × 100

→ P% = 20/400 × 100

→ P% = 5%

• In second case

→ Cost price = Rs.20

→ Selling price = Rs.18

• Loss = C.P - S.P
• Loss = 20 - 18 = Rs.2

→ Loss % = loss/C.P × 100

→ L% = 2/20 × 100

→ L% = 10%