30 litres of a mixture containes oil and water in the ratio 7:8 wgat will be the new ratio if 2 litres of oil is added to this mixture
Answers
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Given:
The ratio of oil and water in the mixture=7:8
The total quantity of the mixture=30 litres
To find:
The new ratio of oil and water
Solution:
The new ratio of oil and water is 1:1.
We can find the ratio by following the given steps-
We know that the total quantity of the mixture is 30 litres.
The ratio of oil and water in this mixture is 7:8.
So, we will calculate the quantity of oil and water in the mixture.
The amount of oil in the mixture=7/15 of the total quantity of the mixture
=7/15×30
=7×2
=14 litres
The amount of water in the mixture=8/15 of the total quantity of the mixture
=8/15×30
=8×2
=16 litres
Now, we know that 2 litres of oil have been added o the mixture.
So, the new amount of oil in the mixture=Original amount+2
=14+2
=16 litres
So, the new ratio of oil and water=New amount of oil: Amount of water
On putting the values,
The new ratio=16:16
=1:1
Therefore, the new ratio of oil and water is 1:1.