Question

The length of a rectangle is 2 more than 3 times its breath .if both length and width are increased by 3 .the new perimeter becomes two times the present one .find length and breathe

Answer 1

Answer:

breadth =1, length = 5

Explanation:

let breadth be b

then length = 3b+ 2

perimeter 1= 8b+4

for second time

breadth = b+3

length = 3b+5

perimeter 2 = 8b+16

ATQ

[perimeter 1] × 2 = perimeter 2

so,

16b+8= 8b+16

b=1

and l = 3b+2 = 5