Question

The ratio of the length and the width of a rectangular sheet of paper is 8: 5. If the width of
the sheet is 17.5 cm, find its length.
【Let length = x cm 8:5 = X: 17.5】​

Answer 1

Answer:

x = 28

Step-by-step explanation:

Ratio of the length and the width of a rectangular sheet of paper =8:5

Width of the sheet =17.5cm

Hence the value of length can be calculated as shown below

8:5=x:17.5

5

8

=

17.5

x

5×x=8×17.5

x=

5

140

x=28

Answer 2

Step-by-step explanation:

let the length of the sheet = x cm

ratio in length and breadth = 8 : 5

and width = 17.5cm

8 : 5 = x : 17.5

$\frac{8}{5} = \frac{x}{17.5} \\ 8 \times 17.5 = x \times 5 \\ x = \frac{8 \times 17.5}{5} = 8 \times 3.5 = 28$

length of sheet = 28cm