 ### Nikita bought 30 kg of wheat at the rate of Rs. 9.50 per kg and 40 kg of wheat at the rate of Rs. 8.50 per kg and mixed them. She sold the mixture at the rate of Rs. 8.90 per kg. Her total profit or loss in the transaction was –

A. Rs. 2 loss B. Rs. 2 profit C. Rs. 7 loss D. Rs. 7 profit Answer: Option A

### Solution(By Apex Team)

$\begin{array}{l}\text{According to the question,}\\ \text{Cost price of the mixture}\\ \text{= 30 × 9.50 + 40 × 8.50}\\ \text{= 285 + 340}\\ \text{= Rs. 625}\\ \text{Selling price of the mixture}\\ \text{= 8.90 × 70}\\ \text{= Rs. 623}\\ \text{Loss = Cost price – Selling price}\\ \text{Loss = 625 – 623 = Rs. 2}\end{array}$

## 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