Question

Length of rectangle is 16cm less than twice its breadth. If perimeter of rectangle is 100cm. Find its length and breadth

Answer 1

Hey friend!!

Length= 2b-16
breadth=b

Perimeter= 2( length+breadth)
100=2(2b-16+b)
100/2=2b-16+b
50= 3b-16
50+16=3b
66=3b
66/3=b
22=b

So the breadth is 22
Length is 22*2-16=28

Hope this helps :-)

Regards
crystinia

Answer 2

let it's breadth is x.
so length =2x - 16cm.
perimeter of rectangle =2(l +b)
2(2x - 16cm+x) = 100 cm
=2( 3x- 16 cm) = 100cm
3x- 16 cm =50cm
3x =66cm
x =22 cm
breadth =22 cm
length =44 cm- 16cm
=28cm