A verandah 1.25m wide is constructed all along the outside of the room 5.5m long and the 4m wide. find the cost of cementing in the floor of the verandah at the rate of rupees 15per sq m?
.Answer is rupee 450.
show me expllenation.
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Given :-
- Length of room = 5.5 m
- Width of room = 4 m
- Width of verandah = 1.25m
- Cost of cementing of verandah = Rs 15 per m²
To Find :-
- Area of verandah
- Cost of cementing of verandah
Formula to be used :-
- Area of Rectangle = Length × width
Solution :-
Area of the room = Length × width
Area of the room = 4 × 5.5 = 22 m²
Area of the verandah with room
= (5.5 + 1.25 + 1.25) × (4 + 1.25 + 1.25)
= 8 × 6.5
= 52
Area of verandah = Area of room with verandah — Area of room
Area of verandah = 52 m² - 22 m²
Area of verandah = 30 m²
Cost of cementing of verandah = Area × Rate
Cost of cementing of verandah = Rs 15 × 30m²
Cost of cementing of verandah = Rs 450
Hence, the cost of cementing the floor of this verandah is Rs 450.
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