Question
A shop owner buys six items and pays additional charges
for delivery. He then sells each by marking up the price by 45% and applying a discount of 20%, with each item selling for Rs. 1,980. If the total loss is Rs. 2,400, what was the delivery charge?Solution
ATQ, Let the cost price of each item be Rs. x. 1.45 × 0.8 × x = 1980 
Total cost price: 1707 × 6 = Rs.10,242 Total selling price: 1980 × 6 = Rs.11,880 Total CP + delivery charges = Total SP + Loss 10,242 + delivery charges = 11,880 + 2,400 Delivery charges = 14,280 − 10,242 = Rs.4,038
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