Question

5. Two and a half litres of paint is used to cover 725 sq m of area.
(i) How much will be required to paint 2001 sq m of area?
(ii) How much area in sq m can be covered by 4.75 litres of paint ?
*by using unitary method*​

Answer 1

Given data : Two and a half litres of paint is used to cover 725 m² of area.

To find :

• How much paint will be required to paint 2001 m² of area ?

• How much area in m² can be covered by 4.75 litres of paint ?

Solution : According to given

→ 2 ½ litres of paint is used to cover 725 m² of area. means 2.5 litres of paint is used to cover 725 m² of area.

Here, we need to find one litre paint how much area will be covered hence,

→ one litre paint = {725/2.5} m²

→ one litre paint = 290 m²

Let, paint required to paint 2001 m² of area be x :

→ x = {2001/209} litres

→ x = {69/10} litres

→ x = 6.9 litres

Let, area in m² covered by 4.75 litres of paint be y :

→ y = {4.75 × 290} m²

→ y = 1377.5 m²

Answer :

• 6.9 litres paint required to paint 2001 m² of area.

• 1377.5 m² area covered by 4.75 litres of paint.

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Answer 2

Step-by-step explanation:

→ 2 ½ litres of paint is used to cover 725 m² of area. means 2.5 litres of paint is used to cover 725 m² of area. Answer : 6.9 litres paint required to paint 2001 m² of area.