The unit digit of every prime number(other than 2 and 5) must be necessarily.
(A) 1, 3 or 5
(B) 1, 3, 7 or 9
(C) 7 or 9
(D) 1 or 7
Answers
Answered by
9
Your answer is 7........
Sanramkar:
please choose any one of the options
i think options are wrong
Actual answer is 3 n 7
ok.
Hmm
by the way thanks for helping me :)
and we can apply 1 in 2 digit number such as 11. so most probably the answer is D.
Yaa
hy
Hi
Similar questions