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# If 5^21 × 4^11 = 2 × 10^n what is the value of n ?

Author Message
Intern
Joined: 08 Jun 2018
Posts: 1
If 5^21 × 4^11 = 2 × 10^n what is the value of n ?  [#permalink]

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28 Oct 2018, 08:28
00:00

Difficulty:

35% (medium)

Question Stats:

80% (00:33) correct 20% (02:05) wrong based on 10 sessions

### HideShow timer Statistics

If 5^21 × 4^11 = 2 × 10^n what is the value of n ?

A. 11
B. 21
C. 22
D. 23
E. 32

Thank you!
Math Expert
Joined: 02 Sep 2009
Posts: 50613
Re: If 5^21 × 4^11 = 2 × 10^n what is the value of n ?  [#permalink]

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28 Oct 2018, 08:36
walshc38 wrote:

If 5^21 × 4^11 = 2 × 10^n what is the value of n ?

A. 11
B. 21
C. 22
D. 23
E. 32

Thank you!

Discussed here: https://gmatclub.com/forum/if-5-21-4-11 ... 98809.html
_________________
Re: If 5^21 × 4^11 = 2 × 10^n what is the value of n ? &nbs [#permalink] 28 Oct 2018, 08:36
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