- A7 : 3
- B3 : 7
- C2 : 3
- D3 : 2
Step-by-Step Solution
By alligation, ratio = (20 − 16.5) : (16.5 − 15) = 3.5 : 1.5 = 7 : 3 (cheaper : dearer).
Answer: A) 7 : 3
In what ratio must a grocer mix two varieties of rice costing ₹15 and ₹20 per kg so that the mixture is worth ₹16.50 per kg?
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