Question

The ratio of number of lemons to number of cups of water to be mixed to prepare lemon juice is 3:5. For 12 lemons what is the number of cups of water required?

• A. 10
• B. 15
• C. 20
• D. 25

Answer 1

The correct option is C

20

The ratio of number of lemons to number of cups of water to be mixed is 3:5.
Number of lemons = 12
Let the number of cups of water required be x.
Now, given ratio is equal to $\frac{\text{No. of lemons}}{\text{No. of cups of water}}$
$\Rightarrow \frac{3}{5}=\frac{12}{x}$
$\Rightarrow 3x=12\times 5$
$\Rightarrow 3x=60$
$\Rightarrow x=20$
Therefore, the number of cups of water required is 20.