The length of a rectangular field is 20 m more than its breadth. If th

1.	The length of a rectangular field is 20 m more than its breadth. If the perimeter of the field is 280 m,what is its length
Answer» Answer: The length is 80 m and breadth is 60 m. Step-by-step EXPLANATION: Let's SUPPOSE the length is x and breadth is y x = 20 + y Then, PERIMETER = 2 × (l + b) 280 = 2 × ( x + y) 280 = 2 × ((20 + y) + y) 280 = 2 × (2y + 20) 280 = 4y + 40 280 - 40 = 4y 240/4 = y 60 = y then, x = 20 + y x = 80

The length of a rectangular field is 20 m more than its breadth. If the perimeter of the field is 280 m,what is its length

Answer»

Answer:

The length is 80 m and breadth is 60 m.

Step-by-step EXPLANATION:

Let's SUPPOSE the length is x and breadth is y

x = 20 + y

Then,

PERIMETER = 2 × (l + b)

280 = 2 × ( x + y)

280 = 2 × ((20 + y) + y)

280 = 2 × (2y + 20)

280 = 4y + 40

280 - 40 = 4y

240/4 = y

60 = y

then, x = 20 + y

x = 80