the length of a rectangle is 2 more than 3times it's breadth. if both length and breadth are increased by 3 the new perimeter becomes two times the present one. find the length and breadth of the rectangle.
Answers
Answered by
1
Answer:
let breadth be x
length =3x+2
perimeter =2(l+b)
=2(3x+2+x)
=2(4x+2)
=8x+4
if length increased by 3 new length=3x+5
breadth=x+3
perimeter =2(3x+5+x+3)
=2(4x+8)
=8x+16
According to the question
8x+16=2(8x+4)
=)8x+16=16x+8
=)16-8=16x-8x
=)8=8x
=)x=1
length =5,breadth =1
Similar questions