### A shopkeeper bought 15 kg of rice at the rate of Rs. 29 per kg and 25 kg of rice at the rate of Rs. 20 per kg. He sold the mixture of both types of rice at the rate of Rs. 27 per kg. His profit in this transaction is –

A. Rs. 125 B. Rs. 150 C. Rs. 140 D. Rs. 145 Answer: Option D

### Solution(By Apex Team)

$\begin{array}{l}\text{According to the question,}\\ \text{Cost price of the mixture}\\ \text{= 15 × 29 + 25 × 20}\\ \text{= Rs. 935}\\ \text{Selling price of the mixture}\\ \text{= 27 × 40}\\ \text{= Rs. 1080}\\ \\ \text{Profit = Selling price – Cost price}\\ \text{Profit = 1080 – 935 = Rs. 145}\end{array}$

## Related Questions On Alligation

A. 2 : 5
B. 3 : 5
C. 5 : 3
D. 5 : 2

### An alloy contains zinc, copper and tin in the ratio 2 : 3 : 1 and another contains copper, tin and lead in the ratio 5 : 4 : 3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in new alloy will be:

A. $\large\frac{1}{2} \mathrm{~kg}$
B. $\large\frac{1}{8} \mathrm{~kg}$
C. $\large\frac{3}{14} \mathrm{~kg}$
D. $\large\frac{7}{9} \mathrm{~kg}$

A. 81 litres
B. 71 litres
C. 56 litres
D. 50 litres