Question

4. The paint in a certain container is sufficient to paint an area equal to 9.375 ml. How
many bricks of dimensions 22.5 cm x 10 cm x 7.5 cm can be painted out of this
container?​

Answer 1

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9th

Maths

Surface Areas and Volumes

Surface Area of Cubes and Cuboids

The paint in a certain cont...

MATHS

The paint in a certain container is sufficient to paint an area equal to 9.375 m

2

. How many bricks of dimensions 22.5 cm×10 cm×7.5 cm can be painted out of this container?

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VIDEO EXPLANATION

ANSWER

Given:

⇒Area=9.375m

2

⇒22.5cm×10cm×7.5cm=l×b×h

⇒Total surface of cuboid (brick) =2(lb+bh+lh)

⇒2(22.5×10+10×7.5+22.5×7.5) cm

2

=2×468.75=937.5 cm

2

⇒Area that can be painted by part of container =93750 cm

2

⇒Let x number of bricks will be used.

⇒Area =937.5×x cm

2

⇒x=

937.5

93750

⇒x=100

Answer 2

Answer:

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