Question

if 2 kg paint is sufficient to cover an area of 7.5 sq.m , find the paint required to paint
the outside of a box 4.5 m long. 2 m wide and 1.5 m high.​

Answer 1

Step-by-step explanation:

paint required to cover an area of 7.5 sq. m= 2 kg

area that can painted in 1kg paint =7.5/2=3.75

area of box =2×l+b×h

=2×4.5+2×1.5

= 12 sq. m

paint required to cover an area of 12sq.m=12/3.75

=3.2 l