Question

A ceiliing 12m by 7.5m is to be painted. one litre of paint covers 15 square metres.(i) Find the area to be painted.
(ii) what is the total amount of paint required for the ceiling?

Answer 1

Area=l×b
=12×7.5
=90sq. m.
90/15=6litre
6litre paint required
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Answer 2

i) the area to be painted is $90 m^2$

ii) the total amount of paint required for the ceiling is 6 liters.

Step-by-step explanation:

Length of ceiling = 12 m

Breadth of ceiling = 7.5 m

Area of ceiling =$Length \times Breadth = 12 \times 7.5=90 m^2$

One liter of paint covers 15 square meters

Paint required to cover 90 sq.m. =$\frac{90}{15}=6$

i) the area to be painted is $90 m^2$

ii) the total amount of paint required for the ceiling is 6 liter

#Learn more:

The internal measures of a cuboidal room are 12m*8m*4m. Find the total cost of painting all four walls of a room, if the cost of painting is 5 per m2. What will be the cost of painting if ceiling of the room is also painted?

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