Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a k

Question

Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.

Options:

A . 1 : 3

B . 2 : 3

C . 3 : 4

D . 4 : 5

Answer: Option B

By the rule of alligation:

Cost of 1 kg of 1^st kind
Cost of 1 kg of 2^nd kind
720 p
Mean Price
630 p
570 p
60
90

Required ratio = 60 : 90 = 2 : 3.

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