Question

The perimeter of rectangle is 15 cm and it width is 3 1/4 cm. Find length

Answer 1

2 1/8 cm is the answer.....

Answer 2

Perimeter =15 cm
Width=13/4
Length=?

So,use formula of perimeter
2(l+b)
Perimeter=2(l+b)
15=2(13/4+b)
15 =2b+2*13/4
15=2b+13/2
According to linear equation
15-13/2=2b
17/2=2b

Therefore b =17/2*2=17
Breadth=17cm