Saroj has 2 goats that produce the milk of different types, so the prices of milk are different. In what ratio must Saroj mix two varieties of milk worth Rs. 15 and Rs. 20 per liter respectively, so as to get a mixture worth Rs. 16.50 per liter??
Question
Saroj has 2 goats that produce the milk of different types, so the prices of milk are different. In what ratio must Saroj mix two varieties of milk worth Rs. 15 and Rs. 20 per liter respectively, so as to get a mixture worth Rs. 16.50 per liter??
By the rule of alligation:
Cost of 1 L milk of 1st kind Cost of 1 kg pulses of 2nd kind
Rs. 15 Rs. 20
Mean Price
Rs. 16.50
3.50 1.50
Required rate = 3.50 : 1.50 = 7 : 3.
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