-1
The length of a rectangular field is thrice its breath. If the cost of cultivating the field at Rs. 367.20 per square metre is Rs. 27,540, then what is the perimeter of the rectangle ?
- A36 m
- B40 m
- C44 m
- D49 m
Correct answer: B
Discussion 1
Log in or create a free account to reply and vote.
0
CCommunity
40 m
Let the breadth of the rectangle be x metre.
∴ Length = 3x metre
∴ 3x x x = 27540/367.20 = 75
= x² = 25= x = 5
∴ Permeter of the rectangle
= 2 (3x + x) = 8 x
= 8 x 5 = 40 metre.
Let the breadth of the rectangle be x metre.
∴ Length = 3x metre
∴ 3x x x = 27540/367.20 = 75
= x² = 25= x = 5
∴ Permeter of the rectangle
= 2 (3x + x) = 8 x
= 8 x 5 = 40 metre.