FM The cost of petrol is directly proportional to the amount put in the tank.
When 40 litres is used, it costs £32.00.How much:
A tank holds 60 litres when full. Petrol is put into the tank until it is full.
The petrol costs £25.
How much petrol was in the tank before it was filled up?

abde or 1,2,4, 5 is the answer

step-by-step explanation:

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.