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79 plates were purchased for ₹79, and 13 plates broke in transit. The trader sold the remaining plates at ₹5.90 each. Find his profit.
Question

79 plates were purchased for ₹79, and 13 plates broke in transit. The trader sold the remaining plates at ₹5.90 each. Find his profit.

A.

₹316.40

B.

₹310.40

C.

₹314.90

D.

₹305.40

Correct option is B

Given:

Total plates purchased = 79

Total cost = ₹79

Plates broken = 13

Plates sold = 79 - 13 = 66

Selling price per plate = ₹5.90

Formula Used:

SP = Number of plates sold × Selling price per plate

Profit = SP - CP 

Solution:

SP = 66 × 5.90 = 389.40

Profit = 389.40 - 79 = ₹310.40

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