Question:medium

A person buys tea of three different qualities at ₹ 800, ₹ 500, and ₹ 300 per kg, respectively, and the amounts bought are in the proportion 2 : 3 : 5. She mixes all the tea and sells one-sixth of the mixture at ₹ 700 per kg. The price, in INR per kg, at which she should sell the remaining tea, to make an overall profit of 50%, is

Updated On: Jan 15, 2026
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The Correct Option is B

Solution and Explanation

Three tea varieties are acquired at unit costs of ₹800, ₹500, and ₹300 per kilogram. Their purchase quantities are in the ratio 2:3:5.

For computational ease, the ratio is scaled to a total that is a multiple of 6, accommodating the separate sale of 5 kg. Multiplying the initial ratio by 3 yields:

Quantities: \( 2 \times 3 = 6 \) kg, \( 3 \times 3 = 9 \) kg, \( 5 \times 3 = 15 \) kg

Aggregate Quantity: \( 6 + 9 + 15 = 30 \) kg

Aggregate Cost:
\( 800 \times 6 = ₹4800 \)
\( 500 \times 9 = ₹4500 \)
\( 300 \times 15 = ₹4500 \)
Total Cost = ₹4800 + ₹4500 + ₹4500 = ₹13,800

A 50% profit margin is applied to the total cost. Thus,

Profit = \( \frac{50}{100} \times 13,800 = ₹6,900 \)

Total Revenue = Cost Price + Profit = \( 13,800 + 6,900 = ₹20,700 \)

Five kilograms of tea are sold at ₹700 per kilogram:
\( 5 \times 700 = ₹3,500 \)

Remaining Quantity = \( 30 - 5 = 25 \) kg
Revenue from Remaining Tea = \( 20,700 - 3,500 = ₹17,200 \)

Sale Price per Kilogram for Remaining Tea =
\( \frac{17,200}{25} = ₹688 \)

Final Result: ₹688 per kg

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