Question

Ydi srab or pani ke 30 liter mishran me srab or pani ka anupat 7:3 he ,to mishran me kitna pani or mila diya jaye ki srab or pani ke anupat 3:7 ho jaye

Answer 1

Answer:

16.4 litres of water should be added

Step-by-step explanation:

Total weight of mixture = 30 litres

So the ratio in case 1 is 7:3

Then it become 3:7

Let the mount of water to be added be x

Therefore,

7 : 3 + x = 3 : 7

7 / 3+x = 3 / 7

3 * 3+x = 7 * 7

9 * 3x = 49

3x = 49 / 9

x = 49 /9 * 3

x = 49 / 3

x = 16.3333

x = 16.4

Therefore, 16.4 litres of water should be added.