Room A is 36m*18m and room B is 24m*8m the breath of which room should be increased and by how much so that the ratio of length and breadth of both the room would be equal
Answers
Answered by
0
Length, breadth and height of a room are 5 m, 4 m and 3 m.
Area of four walls of the room = 2h(l + b)
= 2 x 3 (5 + 4)
= 6(9)
= 54 sq m
Area of the ceiling = l x b
= 5 x 4
= 20 sq cm.
Total area of the four walls and the ceiling of the room
= 54 + 20
= 74 sq cm
Cost of white washing = Rs 7.50 per sq m
Total cost of white washing = 74 x 7.50
= Rs 555
Similar questions