Question

Find the cost of polishing a wooden cabinet of dimensions 3 m×4 m×5 m, if polishing costs $25 per m2

Answer 1

Before, finding the answer. Let's find out on we can find the answer.

• To find the Total Cost, we must use the formula of :

$\boxed{\sf Volume \: of \: Cuboid = l \times b \times h}$

Where, we have to multiply length, breadth and height together.

• Now, we must multiply the Volume of Cuboid with the Rate.

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Given :

• Dimensions = 3m, 4m and 5m.
• Cost = $ 25

To find :

• Cost of Polishing

Solution :

Volume of Cuboid = l × b × h

= [3 × 4] × 5 m³

= 12 × 5 m³

= 60 m³

Hence, the Volume of Cuboid is 60 m³.

Rate of Polishing = Volume × Rate

= 60 × 25

= Rs. 1500

Hence, the Rate of Polishing is Rs. 1500.

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Know more :

• Volume of Cube = (edge)³
• Volume of Cuboid = l × b × h