Question

5. A car uses 10 litres of petrol in 75 km. How far will it go on 8 litres?​

Answer 1

60km

Explanation:

Let x represent the required distance.

Since the quantity of petrol is directly proportional to the distance:

x : 75 = 8 : 10

i.e.
`(x)/(75)` =
`(8)/(10)`

x =
`(75 * 8)/(10)`

x = 60

∴ The distance is 60 km.

Hope this helps!!!

Answer 2

60km

Explanation:

75/10=x/8

Solve For X

75*8=600, 600/10=60

THEREFORE

75/10=60/8

You could ALSO Divide 75 by 10, get 7.5, and multiply THAT by 8, as the car is assumed to have constant gas usage