Test Index

Ratio and Proportion

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Question : 110 of 112

Marks: +1, -0

The ratio of the earnings of two persons

3:2

. If each saves 1/5th of their earnings, the ratio of their savings.

$2:3$
$3:2$
$4:5$
$5:4$

Solution:

Concept:

When both persons save the same fraction of their earnings, the ratio of their savings equals the ratio of their earnings.

Explanation:

Let the earnings be

3x

and

2x

.

Each saves

\frac{1}{5}

of their earnings.

Savings are

\frac{1}{5} \times 3x = \frac{3x}{5}

and

\frac{1}{5} \times 2x = \frac{2x}{5}

.

The ratio of savings is

\frac{3x}{5} : \frac{2x}{5} = 3:2

.

Answer:

3:2

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