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Question
Choose the correct answer from the given options :
The third proportional to `6(1)/(4)` and 5 is
Options
4
`8(1)/(2)`
3
none of these
Solution
The third proportional to `6(1)/(4)` and 5 is
⇒ `6(1)/(4)` : 5 :: 5 : x
⇒ `(25)/(4)`: 5 :: 5 : x
⇒ x = `(5 xx 5)/(25) xx 4`
⇒ 4
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