SSC CGL – Combined Graduate Level Examination · Question 65
How many kilograms of wheat costing ₹52 per kg must be mixed with 30 kg of wheat costing ₹40 per kg so that a 20% gain may be obtained by selling the mixture at ₹54 per kg?
Show answer & explanation
Answer: (B) 21.4 kg
Explanation
Mixture CP = 54/1.2 = ₹45. By alligation 52 : 40 = 5 : 7, so x = 30 × 5/7 ≈ 21.4 kg.