If p,s, and t are positive prime numbers, what is the value of p^3 * s^3 * t^3?
1) p^3 *st=728
To calculate we need p,q and t
A- Alone not sufficient.
B- Alone not sufficient
But if you combine it togeter
p^3 * s = 728/13=56,
Now, p must be 2, since 1 or 3 wont work. So p=2, t=13 and s=7 Answer = C
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