In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?A.3 : 7B.5 : 7C.7 : 3D.7 : 5
Radhika Batra , 11 Years ago
Grade 11
1 Answers
Kevin Nash
Last Activity: 11 Years ago
Answer:OptionC
Explanation:
By the rule of alligation:
Cost of 1 kg pulses of 1stkindCost of 1 kg pulses of 2ndkind
Rs. 15
Mean Price Rs. 16.50
Rs. 20
3.50
1.50
Required rate = 3.50 : 1.50 = 7 : 3.
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