Find the cost of whitewashing the walls of a room 10m long, 6m wide and 4m high allowing 25 sq m for door, windows, etc at rs 50per sq m
Answers
The cost would be 5150 rupees.
Step-by-step explanation:
Given,
Length of room, l = 10 meters,
Width, w = 6 meters,
Height, h = 4 meters,
So, the area of the walls of room ( i.e. area of room except base areas ),
A = 2lh + 2wh
A = 2 × 10 × 4 + 2 × 6 × 4
A = 80 + 48
A = 128 sq meters,
∵ we have to paint the wall after allowing 25 sq m for door, windows, etc.
So, the area of wall that have to paint = A - 25
= 128 - 25
= 103 sq m,
∵ Cost of painting = 50 per sq m,
Hence, total cost of painting = area to paint × cost of painting per sq m
= 103 × 50
= 5150 rupees.
#Learn more :
A rectangular room is 6m long 5m wide and 3.5 m high it has two doors of size 1.1 m by 2 and 3 windows of size 1.5 m by 1.4 m find the cost of whitewashing the walls and the ceiling of the room at the rate of rupees 5.30 per square m.
https://brainly.in/question/7406464
Answer:
The cost would be 5150 rupees.
∵ we have to paint the wall after allowing 25 sq m for door, windows, etc. = 5150 rupees.
Step-by-step explanation:
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