gprep-numbers in list

[eravi11]

A certain list consists of several different integers. Is the product of all the integers in the list positive?

1)the product of the greatest and smallest of the integers in the list is positive
2)There is an even number of integers in the list.

[sonikamadala]

IMO C

(1) : all the numbers in the list are either +ve or -ve.
say list has -3,-2,-1. but the product is -ve.
So not suff.

(2) : say list has -2, 3, 4. but the product is -ve.
So not suff.

(1)&(2) : suff
so C wins

NOTE : we can't consider '0' as the product of small and gretest integers is +ve

[EdYo]

IMO E

(1) pick -6,-4,-3,-1 and 1, 3, 4, 6 --> ins
(2) it can be -6, -4 or 4, 6 --->ins

(1) and (2) together ins

Hence E

[Fiver]

Agree with C.

[socker121314]

1 more for E

[nverma]

It can only be C : NO DOUBTS

[clock60]

C for me
the product of numbers will be positive if all numbers will be positive or it will be even number of negative integers and all sets must not conclude 0
(1)insufficient as can contain odd number of negative integers
-5, -3, -1.
(2) insufficient as it can contain 0 and the product will be neither - nor +
0.1
together
sufficient if all integers are positive the product will be positive
if all integers are negative and the number of integers even the product will be positive
-4,-3,-2,-1

[eravi11]

OA is C..

[socker121314]

but what if the numbers in the set are: -2,-3,5,-6?

[clock60]

Originally Posted by socker121314

but what if the numbers in the set are: -2,-3,5,-6?

hi socker
if the set
-6 -3 -2 5 then the product of the smallest and greatest numbers will be
-6*5=-30-negative but st 1 says that it must be +ive..