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If the arithmetic means of two positive ...

If the arithmetic means of two positive number a and b `(a gt b )` is twice their geometric mean, then find the ratio a: b

A

`2+sqrt(3):2-sqrt(3)`

B

`7+4sqrt(3):1`

C

`1:7-4 sqrt(3)`

D

`2:sqrt(3)`.

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The correct Answer is:
A, B, C
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