If breadth of a room is one fifth of its length and the perimeter of the room is 24m. Find length of the room?
- 10m
- 8m
- 7m
- None of these
Explanation
Given:
Breadth = 1/5 × Length
Perimeter = 24m
Let length = L
Breadth = L/5
Perimeter formula: P = 2(L + B)
24 = 2(L + L/5)
24 = 2(6L/5)
24 = 12L/5
24 × 5 = 12L
120 = 12L
L = 10m
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