### The proportion of acid and water in three samples is 2 : 1, 3 : 2 and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of water and acid in the mixture is –

A. 120 : 133 B. 227 : 133 C. 227 : 120 D. 133 : 227 Answer: Option D

### Solution(By Apex Team)

$\left.\begin{array}{llll} \text { Sample I } & 2_{\times 40}=80 \quad: & 1_{\times 40}=40 & 3_{\times 40} \\ \text { Sample II } & 3 \times 24=72: & 2 \times 24=48 & 5 \times 24 \\ \text { Sample III } & \underline{5 \times 15}=75 : & \underline{3}_{\times 15}=45 & 8 \times 15 \end{array}\right]120$
$\begin{array}{l} \text { Ratio of quantity } \begin{array}{|lll|} \hline 227 & : & 133 \\ \hline \end{array}\\ \text { Required ratio }=133: 227 \end{array}$

## 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