Question

The perimeter of a rectangular chart is 150 cm. If its length is 45 cm, find its breadth and area

Answer 1

Perimeter-150 cm
Length-45 cm
Breadth-150/2-45
75-45
30

Answer 2

Let breadth be xcm
Length=45cm
Perimeter = 150cm
2(l+b)=150cm
2(45cm+b)=150cm
90cm+2b=150cm
2b=150cm-90cm
2b=60cm
B=60/2
b=30cm
Area = l*b
=45cm*30cm
= 1350cm sq