0<=n<=9, what is the value of n?
1). if tenth digit of 1/n is zero
2). if unit digit of 1/n >=n
OA - E
tenth digit - unit digit
This topic has expert replies
-
- Master | Next Rank: 500 Posts
- Posts: 460
- Joined: Sun Mar 25, 2007 7:42 am
- Thanked: 27 times
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
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
Regards
Samir
Samir
-
- Master | Next Rank: 500 Posts
- Posts: 460
- Joined: Sun Mar 25, 2007 7:42 am
- Thanked: 27 times
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.
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.
Regards
Samir
Samir
-
- Master | Next Rank: 500 Posts
- Posts: 175
- Joined: Mon Jul 02, 2007 12:01 pm
- Thanked: 15 times
- Followed by:1 members
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
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
Trying hard!!!