Q55
ArithmeticRatio, Proportion & Mixtures
A man had 100 kgs of sugar, part of which he sold at 7% profit and rest at 17% profit. He gained 10 % on the whole. How much did he sell at 7% profit:
- a.65 kg
- b.35 kg
- c.30 kg
- d.70 kg
Answer: (D) 70 kg
By alligation, the quantities at 7% and 17% are in the ratio (17 − 10) : (10 − 7) = 7 : 3. So 70 kg was sold at 7% profit and 30 kg at 17%. Option C (30 kg) is the part sold at 17%.