IBM
Company
Logical Reasoning
Number Series
2, 7, -35, 7, 12, -60, 5, 10, ?.
Read Solution (Total 12)
-
- -50
Take a group of 3 numbers (2,7,-35) (7,12,-60) (5,10, ?)
If the numbers of the group are (x,y,z), then z= -y*(y-x)
So, -7*(7-2) =-7*5= -35
-12*(12-7)= -12*5= -60
-10*(10-5)= -10*5= -50 - 8 years agoHelpfull: Yes(32) No(1)
- 2 - 7 = - 5 7 * - 5 = - 35
7 - 12 = -5 12 * -5 = -60
5 - 10 = -5 10 * -5 = -50 - 8 years agoHelpfull: Yes(6) No(0)
- ANSWER : -50
(2-7)*7= -35
(7-12)*12 = -60
(5-10)*10 = -50 - 8 years agoHelpfull: Yes(5) No(0)
- 2+5=7*-5=-35
7+5=12*-5= -60
5+5=10* -5=-50 - 8 years agoHelpfull: Yes(2) No(0)
- First divide the series in 3 numbers, nd then 7 *5=35,7-5=2... So ans is -50
- 8 years agoHelpfull: Yes(1) No(0)
- -50 is the answer
bcoz
2+5=7
7+5=12
5+5=10
7*-5=-35
12*-5=-60
10*-5=-50 - 8 years agoHelpfull: Yes(1) No(1)
- 5*7=35
5*12=60
5*10=50
ans is=50 - 8 years agoHelpfull: Yes(0) No(1)
- _50 bcoz 2+5=7 and 7* _5=_35 so 5+5=10 and 10*_5=_50
- 8 years agoHelpfull: Yes(0) No(1)
- Difference bwn 2 & 7 is -5 then 7* -5 is -35.
7 & 12 is -5 then 12*-5 is -60.
In the same way difference between 5 & 10 is -5 then 10* -5 is -50.
So answer is -50. - 8 years agoHelpfull: Yes(0) No(0)
- 2-7=-5*7=-35
7-12=-5*12=-60
5-10=-5*10=-50 - 7 years agoHelpfull: Yes(0) No(0)
- ans: -50
sol : 2-7= -5, 7*-5= -35
7-12=-5, 12*-5=-60
5-10=-5, 10*-5=-50 - 7 years agoHelpfull: Yes(0) No(0)
- first divide 3 numbers into 1 set (2,7,-35) as one set , (7,12,-60) as one set (5,10,?) as one set
Now see
difference btw 1st num & 2nd num of each set is -5 , multiply -5 wth middle number of each set
2 - 7 = -5 * 7 =-35
7 - 12 = -5 * 12 = -60
5 - 10 = -5 * 10 = -50 - 6 years agoHelpfull: Yes(0) No(0)
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