Question

Petrol and oil are mixed in the ratio 40 : 1. How many litres of oil needed to mix with 5 litres of petrol?​

Answer 1

Answer:

Step-by-step explanation:

If you can't find the specific ratio for your mix, 40:1 is accepted as an average ratio for two-stroke engines. This is 125mls of two stroke oil to 5L of fuel

Answer 2

Answer:

If 40:1 is the ratio of petrol and oil mixed, then 125 ml of oil is used to mix with 5 liters of petrol.

Step-by-step explanation:

Given

The ratio of petrol to oil = 40:1

So for 40 liters of petrol, 1 liter of oil is mixed.

So for 1 liter of petrol

$\frac{1}{40}$ liters of oil is mixed

So for 5 liters of petrol, oil mixed

$=\frac{1}{40} *5\\\\=\frac{1}{8} = 0.125$

That is 125 ml of petrol