The length, breadth and height of a room is 5m, 4m and 3m. The cost of white washing its four walls at the rate of Rs. 7.50 per square meter is

Updated on May 13, 2025 | By Learnzy Academy

Given:
Length = 5 meters
Breadth = 4 meters
Height = 3 meters
Cost of whitewashing = Rs. 7.50 per square meter

Step 1:- Find the area of the four walls.

Formula: Area = 2 × height × (length + breadth)
Area = 2 × 3 × (5 + 4)
Area = 6 × 9 = 54 square meters

Step 2:- Calculate the cost of whitewashing.

Cost = Area × Rate
Cost = 54 × 7.50 = Rs. 405.00

Hence cost is Rs. 405.00

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