Question

A mixture of 30 litres contains milk and water in the ratio of 7:3 how much water should be added to it such that tge ratio become 3:7 respectively

Answer 1

54 litres of water should be added to it.

Answer 2

Answer:

40 liters

Step-by-step explanation:

We are given that A mixture of 30 litres contains milk and water in the ratio of 7:3

Amount of water in mixture = $\frac{3}{10} \times 30=9$

Amount of milk in mixture = $\frac{7}{10} \times 30=21$

Let x be the amount of water should be added such that the ratio become 3:7 respectively

So, $\frac{21}{9+x}=\frac{3}{7}$

$147=27+3x$

$147-27=3x$

$120=3x$

$\frac{120}{3}=x$

$40=x$

Hence 40 liters of water should be added  such that the ratio become 3:7 respectively