Find the ratio in which rice at Rs. 7.20 a kg is mixed with rice at Rs. 5.70 a…
2017
Find the ratio in which rice at Rs. 7.20 a kg is mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg?
Answer: B. 2:3 — Using alligation: dearer rice = 7.20, cheaper rice = 5.70, mean price = 6.30. Ratio = (6.30 - 5.70) : (7.20 - 6.30) = 0.60 : 0.90 = 2 : 3.
- A.
1:3
- B.
2:3
- C.
3:4
- D.
4:5
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Correct answer: B
Using alligation: dearer rice = 7.20, cheaper rice = 5.70, mean price = 6.30. Ratio = (6.30 - 5.70) : (7.20 - 6.30) = 0.60 : 0.90 = 2 : 3.
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