NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 7: Comparing Quantities - Problems and Solutions
Question 122

Question. 122

A tea merchant blends two varieties of tea in the ratio of 5 : 4. The cost of first variety is ₹ 200 per kg and that of second variety is ₹ 300 per kg. If he sells the blended tea at the rate of ₹ 275 per kg, find out the percentage of her profit or loss.

Answer:

12.5%

Detailed Answer with Explanation:

Weighted CP = (5×200 + 4×300)/9 = 2200/9 = 244.44. SP = 275. Profit% = (275-244.44)/244.44 × 100 ≈ 12.5%.

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