Correct Answer - Option 1 : (100/21)% Loss
Given:
Suraj buys toffees at the rate of 5 for Rs. 7
And He sells toffees at the rate of 3 for Rs. 4
Formula:
Profit = S.P - C.P
Loss = C.P - S.P
Profit% = (Profit × 100)/C.P
Loss% = (Loss × 100)/C.P
Where, S.P = Selling Price, C.P = Cost Price
Calculation:
Let the number of toffees be 15 L.C.M of (5, 3)
⇒ Cost Price of 15 toffee = 15 × (7/5) = Rs. 21
⇒ Selling Price of 15 toffee = 15 × (4/3) = Rs. 20
⇒ Loss = C.P - S.P = 21 - 20
⇒ Loss = Re. 1
Loss% = (Loss × 100)/C.P
⇒ Loss% = (1 × 100)/21
⇒ Loss% = 100/21
∴ Suraj undergoes a loss of (100/21)%.
