Thread: DS integers

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Posted by: dauntless18

Is n an integer greater than 4?

(1) 3n is a positive integer.

(2) n/3 is a positive integer.

A. Statment 1 alone is sufficient

B. """""""""""2 alone is sufficient

C. """"""""""''Both statemennt together are sufficient but neither of them is alone sufficient

D. Either statement alone is suficient

E. None of them
please gimme elaborate explaination
from grass root level

from option A

n can be 1/3 , 3 , 9 etc ..nt sufficient since some values of n are less than 4 , some greater than 4, and some are fractions (1/3, 2/3 ..etc)

from option B
n/3 is a +ve integer
n can be 3 , 9 12 etc...again some values of n are less than 4 and some are greater than 4

even if you combine option A and B , n can be 3, 9 etc

so ans E

Agrrr with E.