The cost of painting the four walls of a room 12m long at ₹ 30 per m² is ₹7560 and the cost of covering the floor with mat at ₹ 25 per m² is ₹ 2700. find the dimensions of the room.
Answers
Answer:
Step-by-step explanation:
Cost of flooring = 2700
Rate= 25/m2
Surface area = cost/rate
= 2700/25= 108m2.
Surface area of floor = length x breath
Therefore, 108= l x b
108= 12 x b
b= 108/12=9m
Breath= 9m
Cost of painting four walls = 7560
Rate= 30/m2
Surface area of four walls=
Cost/rate
= 7560/30= 252m2
Surface area of four walls = 2(l + b)h
Therefore, 2(l +b)h = 252
→ h = 252/2(9+12)
→ h = 6m
Answer:
Step-by-step explanation:
Cost of flooring = 2700
Rate= 25/m2
Surface area = cost/rate
= 2700/25= 108m2.
Surface area of floor = length x breath
Therefore, 108= l x b
108= 12 x b
b= 108/12=9m
Breath= 9m
Cost of painting four walls = 7560
Rate= 30/m2
Surface area of four walls=
Cost/rate
= 7560/30= 252m2
Surface area of four walls = 2(l + b)h
Therefore, 2(l +b)h = 252
→ h = 252/2(9+12)
→ h = 6m