In what proportion must wheat at Rs. 15 per kg. be mixed with wheat at Rs. 18…
2024
In what proportion must wheat at Rs. 15 per kg. be mixed with wheat at Rs. 18 per kg. So that the mixture will be worth Rs. 17 per kg. ?
- A.
2 : 1
- B.
3 : 2
- C.
1 : 2
- D.
2 : 3
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Show answer & explanation
Correct answer: C
Given:
Wheat at Rs 15 per kg (cheaper), wheat at Rs 18 per kg (dearer), required mean price Rs 17 per kg.
Alligation step:
Difference between dearer price and mean price = 18 − 17 = 1
Difference between mean price and cheaper price = 17 − 15 = 2
Ratio of cheaper to dearer = 1 : 2.
Interpretation: Mix one part of the wheat priced at Rs 15 per kg with two parts of the wheat priced at Rs 18 per kg to get a mixture worth Rs 17 per kg.