A) 69 kg
B) 68 kg
C) 60 kg
D) 61 kg
Correct Answer: A
Solution :
Selling price of 1 kg of mixture = Rs. 14.40, Gain = 20% |
Cost price of 1 kg of mixture = Rs.\[\left( \frac{100}{120}\times 14.40 \right)\]= Rs. 12 |
(Dearer : Cheaper) = 345 : 630 = 23 : 42 |
Let x kg of dearer may be mixed with 126 kg of cheaper |
Then, \[\frac{x}{126}=\frac{23}{42}\]\[\Rightarrow \]\[x=\left( \frac{23}{42}\times 126 \right)=69\,\,\text{kg}\] |
Required quantity = 69 kgC |
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