The walls and ceiling of a room 7m  

Long, 5m wide and 3.5 m high are covered with paper 6 dm wide. Find the length of paper required, if no length less than a metre can be bought.

Asked by Jitendrakumardivedi | 16th Sep, 2018, 10:28: AM

Expert Answer:

l = 7 m, b = 5 m and h = 3.5 m
Area of four walls = 2(l + b)h = 84 m2
Let the length of the paper be L.
L × 6/10 = 84
L = 140 m
Length of the paper required is 140 m.

Answered by Sneha shidid | 18th Sep, 2018, 09:44: AM