A milkman mixed some water with milk to gain 25% by selling the mixture at the cost price. The ratio of water and milk is respectively –
A. 5 : 4 B. 4 : 5 C. 1 : 5 D. 1 : 4 Answer: Option DShow Answer
Solution(By Apex Team)
Cost price of 1 litres of milk = Rs. 100
∴ Mixture sold for Rs. 125
$=\Large\frac{125}{100}=\frac{5}{4}$
$\begin{aligned}&\text{∴ Quantity of mixture =}\frac{5}{4}\ \text{litres}\\
&\text{∴ Quantity of milk = 1 litre}\\
&\text{∴ Quantity of water = }\frac{5}{4}-1=\frac{1}{4}\text{litre}\\
&\text{∴ Required ratio =}\frac{1}{4}\ :\ 1=1\ :\ 4\end{aligned}$
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