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Alligation & Mixtures · Question 14 of 88

Question 14

MediumOriginal question

A spice blend uses 1 kg of a spice at ₹300 per kg, 2 kg at ₹240 per kg and 3 kg at ₹200 per kg. What is the price per kg of the blend?

Options for question 14

Show the answer and explanation
CorrectNot quiteAnswer B

Correct answer: B

Explanation

  1. Cost: 300+480+600=1,380300 + 480 + 600 = 1{,}380 rupees for 6 kg.

  2. 1,3806=230\frac{1{,}380}{6} = 230 rupees per kg.

Worth noting

₹246.67 averages the three prices equally, ignoring that there is most of the cheapest spice.

Concept
The mean price of three kinds
Typical time
90 s
Your time
—
The rule this testsThe mean price of a mixture
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