Correct Answer - Option 4 : None of these
Formula -
Cost Price (C.P) = Selling Price (S.P) - Profit
% Profit = (Profit × 100) ÷ C.P
Calculation -
Let the S.P of article be k then,
⇒ S.P = k
⇒ Profit = (40 × K) ÷ 100
⇒ Profit - 2k ÷ 5
⇒ C.P = S.P - Profit
⇒ C.P = k - 2k ÷ 5
⇒ C.P = 3k ÷ 5
Profit% = ((2k ÷ 5 )× 100) ÷ (3k ÷ 5)
⇒ Profit% = 200/3
⇒ Profit% = 66.66%
∴ The required profit% is 66.66%
