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Mixtures & Alligation · Question 10 of 60

Question 10

EasyOriginal question

Gurpreet mixes 2 kg of cashews at ₹900 per kg with 3 kg of a second variety. The mixture is worth ₹1,080 per kg. What is the price of the second variety per kg?

Options for question 10

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. Cost of 5 kg of mixture = 5×1080=54005 \times 1080 = 5400 rupees.

  2. Cost of the 2 kg = 2×900=18002 \times 900 = 1800 rupees.

  3. Second variety: 5400−18003=1200\frac{5400 - 1800}{3} = 1200 rupees per kg.

Worth noting

₹1,260 comes from assuming the mean is the plain average, so the second price is 2×1,080−9002 \times 1{,}080 - 900.

Concept
Finding an unknown price from the mean price
Typical time
45 s
Your time
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The rule this testsThe alligation rule
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Ten questions from Mixtures & Alligation, at your own pace.

Practise this chapter →

Ten questions from Mixtures & Alligation, at your own pace.