Question

How much are bike uses a petrol and oil mixture in the ratio 17:3.
A) how much of each is there in 25 litres of mixture?

Answer 1

By using the given ratio, we will see that 21.25L is petrol and 3.75L of oil.

How much of each component is used?

We know that Petrol and Oil is used in a mix with a ratio of 17:3

Then, in 25 liters, then first we need to divide this by 20 (the sum of the two numbers of the ratio), we get:

25 L/20 = 1.25L

So we divided 25 liters in 20 parts. 17 of these parts are petrol, and 3 of these parts are oil

Then:

17*1.25L = 21.25L of petrol

3*1.25L = 3.75L of oil.

If you want to learn more about ratios, you can read:

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