Hal is painting the four walls and ceiling of his bedroom. The bedroom is 6 m long, 4.5 m wide and 3 m high. Paint comes in 4 L cans. One litre of pain covers 10 square metres. What is the area Hal needs to paint and how many cans are needed?
Answers
Answer:
Length of the wall =6m
Breadth of the wall = 3m
Length of the ceiling =4.5m
Breadth of the ceiling =3m
The area that could be painted in 1 litre =10m^2
1 Can contains 4 Litres of paint.
Now, The total area need to be painted = area of 4 walls +1 ceiling
Since ,area of the 4 walls = 4x(6x3) m^2
= 4 x 18m^2 =>72m^2
Area of the ceiling = lxb=> 4.5 x 3 m^2 = 13.5m^2
Hence, the area needed to be painted by Hal=72+13.5 m^2 = 85.5 m^2. Ans.
the Litres of paint required to paint
85.5 m^2 =85.5m^2/10m^2 per litre
= 8.55 Litres
Since
The number of cans required =8.55/4
=2.13.... Cans
=3 Cans Ans.
Hope it's helpful for you
Answer:
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