The cost of flooring at ruppes 20 per square meter is ruppes 4,200. If the length of the room is 21 m, then it's breadth is -:
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The cost of flooring at ruppes 20 per square meter is ruppes 4,200. If the length of the room is 21 m, then it's breadth is -:
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Answer: flooring 1m² costs = Rs.20
total cost for flooring the floor = Rs.4200
length of the floor = l = 21m
let the breadth = b
Area of the floor = l × b = 21m × b
cost of flooring of the room = area of the room × cost of flooring per m²
=> 4200 = ( 21 × b ) × 20
=> 4200/20 = 21 × b
=> 21 × b = 210
=> b = 210/21
= 10m
Hence the breadth (b) of the room is 10m.
Step-by-step explanation:
Step-by-step explanation:
Can any body tell me the answer