Question

A vendor mixes 4 kg of oil at Rs. 10 per kg with 6 kg at

Required cost price 6 4 6 10 4 10 84 14 Rs. 6.0

Rs. 6 per kg. What is the cost price (in Rs.) of the mixture per kg?

A Rs. 7.5

B Rs. 6

C Rs. 7.2

D Rs. 6.4

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Solution