number comparison

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by pops » Mon Apr 19, 2010 12:25 am
[email protected] wrote:He is twice as old as his son.
He is two times as old as his son.

Are both the sentences correct in GMAT ?
I am sure of the second sentence, but not sure if the first sentence is correct.

Could you let me know, please?
Second one is considered wordy hence first would be preferred.

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by [email protected] » Mon Apr 19, 2010 1:22 am
He is twice as old as his son.
He is twice as much old as his son.

Which one ?

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by arpita@gurome » Mon Apr 19, 2010 1:27 am
The correct usage is "once", "twice", and "three times" (not thrice).

Although two times is used in informal usage, stick to "twice" in formal usage.
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