Q 1419680510.     Let the `HM` and `GM` of two positive numbers be in the ratio `4 : 5`, then the two numbers are in the ratio .....

A

`1:3` or `3:1`

B

`1:2` or `2:1`

C

`1:4` or `4:1`

D

`1:5` or `5:1`

HINT

` H/G = 4/5 => G/A = 4/5 ` or `A =5lamda , G =4lamda`
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