PDA

View Full Version : pp question urgent



moon_2016
10-01-2004, 11:19 PM
Which of the following is the sum of integers whose product is -24?

-23
-11
0
4
12

ans is -23 please explain

spiderman
10-01-2004, 11:31 PM
imo, answer should be 0.
if x*-y = -24
then -x*y is also equal to -24.
for every pair (x,-y) there is a corresponding pair (-x,y)

gre_nidhi
10-02-2004, 12:36 AM
I think integers are -24 & 1 such that their product is (-24*1) = -24
and so their sum would be (-24+1) = -23.
so, -23 is correct.

moon_2016
10-02-2004, 01:06 AM
nidhi you are correct

spiderman
10-02-2004, 03:10 AM
I think integers are -24 & 1 such that their product is (-24*1) = -24
and so their sum would be (-24+1) = -23.
so, -23 is correct.

oopss .. misread the question as "the sum of all integers whose product is -24" ! agree with -23.