Question

A person bought 20 kg of rice at Rs. 10.50 per kg and 30 kgs at Rs. 12 per kg. He mixed the two and sold the mixture at Rs. 11.40 per kg. What was the gain in this deal (in Rs.)?
(a) 0
(b) 20
(c) 100
(d) 75
(e) 5

Answer 1

(20*10.50)+(30*12)/(50)= average cost price of
mixture
=210+360/50
570/50=11.4


selling price =11.4

gain i= sp-cp=11.4-11.4=0

so is the correct option

Answer 2

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