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A simple question on powers

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by tohellandback » Wed Aug 19, 2009 8:09 am
I would say
q= p^(3/4)
The powers of two are bloody impolite!!
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by truplayer256 » Wed Aug 19, 2009 9:27 am
p = a^4

q = a^3

express q in terms of p.

Well, as you know, (x^n)^m=x^nm

So if q=a^3, then what would you raise a^4 to to get a^3.

(a^4)^x)=a^3

a^4x=a^3

x=3/4

So, the answer is p^(3/4).
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by winnerhere » Wed Aug 19, 2009 9:58 am
thanks guys

truplayer cleared my doubt clearly :)
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Re: A simple question on powers

by quant-master » Wed Aug 19, 2009 10:02 am
winnerhere wrote:A simple question on powers to enable me to think fast

p = a^4

q = a^3

express q in terms of p.

How would u approach this sum.

Regards
Sai
To express q in terms of p make RHS of p and q equal

p^3 = a^12
q^4 = a^12

q^4 = p^3

q = p^(3/4)

Thanks,
Quant-Master
https://gmat-quants.blocked - My Blog Updated almost daily with new quant fundas. Find collection of quants question in my blog
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