Question

The ratio between the length and width of a rectangular sheet of paper is 7:5. If the width of the sheet is 20.5cm, find its Length

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Answer 1

Answer:

length of sheet = 28.7 cm

Explanation:

ratio of length and width = 7/5

width os sheet = 20.5 cm

let the length of sheet = x cm

length/width = 7/5

x/20.5 = 7/5

5x = 20.5 × 7

5x = 143.5

x = 143.5/5

x = 28.7 cm

Answer 2

Answer:

29.12 cm

Explanation:

Ratio - l:w 7 : 5

let l= x

$\frac{7}{5 } = \frac{x}{20.5}$

$x = 29.12 cm$