Question

a rectangular piece of paper has a width of 16 inches and an area of 192 square inches. What is its length?

Answer 1

Answer:

length=12inches

Step-by-step explanation:

area of rectangular piece=l*b

192 sq inches=l*16

192/16=l

12=l

Answer 2

Answer:

Given,

Width of Rectangular piece of paper = 16inches

Area of Rectangular piece of paper = 192square inches.

i.e

Area of Rectangular piece of paper = $\sf 192inches^{2}$

To Find :-

Length of Rectangular piece of paper.

Solution :-

Let,

Width of Rectangular piece of paper be 'b'

Length of Rectangular piece of paper be 'l'

Area of Rectangular piece of paper be 'A'

Area of Rectangular piece of paper = length *breadth

i.e

A = $\sf length\times breadth$

Substituting values :-

$\sf 192inches^{2} = l\times 16inches$

$\sf\implies l = \dfrac{192inches^{2}}{16inches}$

l = 12inches.

$\sf\therefore 16\: cancel\: of\: 192\: by\:12times$

$\sf\therefore$ Length of Rectangular piece of paper = l = 12inches