Mixtures and Alligation Statements

CMAT 2024 · Quantitative Techniques & Data Interpretation · Easy · Mixtures and Alligations

Given below are two statements :

Statement I : In order to get a mixture worth ₹ 16.5/kg, a grocer needs to mix two varieties of pulses costing ₹ 15 and ₹ 20 per kg respectively in the ratio 7 : 3.

Statement II : A merchant has 1000 kg rice, part of which he sells at 8 % profit and the rest at 16 % profit. He gains 14 % on the whole. The quantity of rice sold at 16 % profit is 750 kg.

In the light of the above statements, choose the correct answer from the option given below:

  1. A.

    Both Statement I and Statement II are true

  2. B.

    Both Statement I and Statement II are false

  3. C.

    Statement I is true but Statement II is false

  4. D.

    Statement I is false but Statement II is true

Answer

A

Explanation

Statement I: Weighted average price = 7×15+3×207+3=105+6010=16510=16.5\frac{7 \times 15 + 3 \times 20}{7 + 3} = \frac{105 + 60}{10} = \frac{165}{10} = 16.5. So Statement I is true.

Statement II: By alligation ratio of quantities at 8% and 16%: (16−14):(14−8)=2:6=1:3(16 - 14) : (14 - 8) = 2 : 6 = 1 : 3. Quantity sold at 16% profit = 34×1000=750\frac{3}{4} \times 1000 = 750 kg. So Statement II is true.

Hence, Option A is correct.

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