Correct Answer - Option 3 : Rs. 54
Given:
C.P. of 36 kg sugar = 1620
Profit = S.P. of 6 kg sugar
C.P. = Cost price
S.P. = Selling price
Calculation:
Here Quantity of sold sugar = Quantity of sugar bought - profitable sugar
⇒ Quantity of sold sugar = (36 - 6) kg
⇒ Quantity of sold sugar = 30 kg
So after selling 30 kg of sugar we get C.P. of 36 kg
So, 36 × C.P. = 30 × S.P.
⇒ Rs. 1620 = 30 × S.P.
⇒ S.P. = Rs. 1620/30.
⇒ S.P. = Rs. 54
∴ Roshan's selling price per kg is Rs. 54.