Find mean proportional between `(15+ sqrt(200))` and `(27-sqrt(468))`

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Q 2235891762.     Find mean proportional between `(15+ sqrt(200))` and `(27-sqrt(468))`
IBPS-PO 2017 Mock Mains
A

`7 sqrt5`

B

`3 sqrt5`

C

`4 sqrt(10)`

D

`9 sqrt7`

E

None of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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