If 2 kg paint is sufficient to cover an area of 7.5 m², find the paint required to paint the outside of a box 4.5 m long, 2 m wide and 1.5 m high.
Answers
Answer:
10kg paint will be required to paint the outside of a box 4.5 m long, 2 m wide and 1.5 m high.
Step-by-step explanation:
Given the length of the box = 4.5 m = L
Breadth of the box = 2m = B
Height of the box = 1.5m = H
In order to find the area that is to be painted, we find the total surface area (TSA)
We know that TSA = 2(LB + BH + HL)
= 2(4.5*2 + 2*1.5 + 1.5*4.5)
= 2( 9 + 3 + 6.75)
= 2(18.75)
= 37.50m²
Therefore, 37.50m² needs to be painted
Given that 7.5m² is painted with 2 kg paint
=> 1m² will be painted with 2/7.5 kg paint
=> 37.50m² will be painted with (2/7.5)* 37.50 kg paint
= 10kg paint.
Therefore, 10kg paint will be required to paint the outside of a box 4.5 m long, 2 m wide and 1.5 m high.
Answer:
If 2 kg paint is sufficient to cover an area of 7.5 m²,
To find : The paint required to paint the outside of a box
4.5 m long,
2 m wide and
1.5 m high.
