tenth digit - unit digit

0<=n<=9, what is the value of n?

1). if tenth digit of 1/n is zero

here tenth digit is 0 only if n =1

Hence SUFF

2). if unit digit of 1/n >=n

1 satisfies this, in all other cases unit digit will be 0 & n will be 2-9

in both cases 1/0 will be undefined, so we cannot analyse that.

so ans should be D

What i think is, since in both the cases we dont know what is the calue of 1/0 is?
The ans should be E.

Hi Suyog,
Well I thought that, coz it may be the only rational expln for E

but if we say that stmt 1 is not suff taking 1/0 in consideration, then it would be coz the tenth digit of 1/0 is 0 & so is the tenth digit of 1, now I'm in a dilemma, can we be make that kind of an assertion considering the digits of an undefined nos.

let's list down the integers from 0 to 9 see its inverse

n 1/n
0 undefined
1 1.00
2 0.50
3 0.33
4 0.25
5 0.20
6 0.17
7 0.14
8 0.125
9 0.11

NOTE - I think we can exclude 0 as its inverse is not defined....

Stmt 1 - from the above list we can see that 1 satisfy the cond..so insuff
Stmt 2 - from the above list we can see that 1 satisfy the cond..so insuff

Ans shld be D....this Q seems a bit crappy. i really dbt whether such ambigous Qs would appear on D-day