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Question
If 2x, 9 and 18 are in continued proportion, the value of x is ______.
Options
`2 1/4`
`4/9`
1
9
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Solution
If 2x, 9 and 18 are in continued proportion, the value of x is `underlinebb(2 1/4)`.
Explanation:
Since 2x, 9 and 18 are in continued proportion
∴ `(2x)/9 = 9/18 = 1/2`
`\implies x = 1/2 xx 9/2`
= `9/4`
= `2 1/4`
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