Question : In what ratio must a supplier mix two varieties of pulses costing INR 10 per kg and INR 30 per kg, respectively, so as to get a mixture worth INR 15 per kg?
Option 1: 3 : 1
Option 2: 4 : 5
Option 3: 2 : 3
Option 4: 1 : 2
Correct Answer: 3 : 1
Solution :
By alligation method,
The required ratio = (30 – 15) : (15 – 10) = 15 : 5 = 3 : 1
Hence, the correct answer is 3 : 1.