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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 the length.
Solution
Let length of sheet = x cm
Ratio in length and breadth = 8 : 5
and width = 17.5 cm
8 : 5 = x : 17.5
⇒ `8/5="x"/17.5`
⇒ 8 × 17.5 = x × 5
⇒ x = `(8xx17.5)/5` = 8 × 3.5 = 28
Length of sheet = 28 cm
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