AV24 wrote:
Bunuel wrote:
If m and n are positive integers, what is the greatest possible value of n?
(1) m^5 + n^5 < 1,200
(2) m^5 = 0
I) m^5 + n^5 < 1,200 ==> gives you nothing for n ==> not sufficient
II) m^5 = 0 ==> this can be true when m=0 but still not sufficient as it gives nothing for n
But using I and II together, we have
n^5 < 1200 ==> n is positive interger, so there will multiple values of n and there will be one greatest value which when raised to power 5 will be less than 1200
or we know 2^10 = 1024 = 4^5, anything above 4^5 will be greater than 1200 so greatest possible value for n=4 ==>sufficient
Ans C
My understanding is different. Tell me, please, if it is wrong.
1) m and n are positiv integers.
m could be 1, hence greatest possible value of n is 4 —> sufficient
2) m^5=0 -> greatest possible value of n is 4 —> sufficient