If a number is a multiple of 6, then it must also be a

Question

If a number is a multiple of 6, then it must also be a multiple of 3 and it must be an even number. I have a number X which is a multiple of 3. I may assume that:
A. It must be an even number.
B. It may be an even number but doesn't have to be.
C. It cannot be an even number.
D. It cannot be a multiple of 6.
E. It can be a multiple of 6 or an even number, but not both.

I dont have any OA. just wanted to confirm my answer..

halahpeno · Answer

A. It must be an even number - consider 9 - NO.
B. It may be an even number but doesn't have to be - pretty open-ended, but YES (consider 9, 12)
C. It cannot be an even number - consider 9 again - NO.
D. It cannot be a multiple of 6 - consider 12 - NO.
E. It can be a multiple of 6 or an even number, but not both - consider 12 again, NO.

chunjuwu · Answer

A. It must be an even number.
 too absolute 
B. It may be an even number but doesn't have to be.
 moderate reasoning 
C. It cannot be an even number.
 too absolute 
D. It cannot be a multiple of 6.
 too absolute 
E. It can be a multiple of 6 or an even number, but not both.
 too absolute, may be both

jpv · Answer

I dont have any OA. But I agree with (B).

MA · Answer

A. It must be an even number=> must is too strong.
B. It may be an even number but doesn't have to be=> may be ok.
C. It cannot be an even number=> cannot be too strong.
D. It cannot be a multiple of 6=> cannot be too strong.
E. It can be a multiple of 6 or an even number, but not both=> can be ok, but cannot be both means cannot be a multiple of 6 and even integer. too strong too because all multiples of 6 are even integers.


B wins.

ywilfred · Answer

1)If num is multiple of 6, then num is multiple of 3
If 1) is true, then num is even

A. It must be an even number. 
- Out. We're not sure of that.

B. It may be an even number but doesn't have to be. 
- This is the answer. There's a possibility it might be even, but it doesn't have to be the case

C. It cannot be an even number. 
- Out.

D. It cannot be a multiple of 6. 
- Can't tell

E. It can be a multiple of 6 or an even number, but not both. 
- Out.

B it is.

If a number is a multiple of 6, then it must also be a

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