Question

A square room contains 196cu m of air. The cost of colouring its 4 walls at Rs 25 persq. metre is Rs 2800. Find the height of room​

Answer 1

Step-by-step explanation:

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Answer 2

Quite easy :)

☆Given☆

• Amount of air room contains = 196m³
• Cost of colouring at Rs 25 per m² = Rs 2800

☆To find☆

Height of Room

☆Solution☆

Rs 25 × Area = Rs 2800

[ Suppose area of walls is equal to x , so at rs 25 per m² its total cost will be Rs 2800 ]

Area = 2800 ÷ 25

Area = 112m²

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• Area × height = Volume
• 112m² x height = 196m³
• Height = 196 / 112 m

Height = 1.75m answer..

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