Question

A tractor uses up 12 litres of diesel while ploughing 3 acres of land. How much diesel will be needed to plough 19 acres of land?

Answer 1

Use ratio method to find the answer.

Diesel used : Acres of land
12 : 3
x : 19

x is the amount of diesel needed to plough 19 acres of land.

x = (19 × 12) ÷ 3 which will give you 76.

So 76 litres of diesel is needed to plough 19 acres of land.

Answer 2

Answer:

76

Step-by-step explanation:

Given A tractor uses up 12 litres of diesel while ploughing 3 acres of land. How much diesel will be needed to plough 19 acres of land?

  We can do this by unitary method.

For ploughing three acres of land, a tractor uses 12 litres of diesel

Therefore for one acre of land a tractor uses 12/3 = 4 litres of diesel.

Now to plough one acre of land a tractor uses 4 litres of diesel

So for 19 acres of land the tractor uses 19 x 4 = 76 litres of diesel.

So 76 litres of diesel is needed to plough 19 acres of land.