Question
A man purchased two varieties of erasers at the rate of
₹3 for 4 erasers and ₹3 per erasers, respectively. If he purchased an equal number of erasers of each variety and then sold all his erasers at ₹3 per erasers, what was his profit percentage?Solution
ATQ,
Assume 12 erasers of each type ₹3 for 4 → 12 erasers cost = (12 ÷ 4) × 3 = ₹9 ₹3 per piece → 12 erasers cost = 12 × 3 = ₹36 Total cost = 9 + 36 = ₹45 Total erasers = 12 + 12 = 24 Selling price = 24 × ₹3 = ₹72 Profit = 72 − 45 = ₹27 Profit % = (27 ÷ 45) × 100 = 60%
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