IBM
Company
Numerical Ability
Sequence and Series
What is the next number of the following sequence
48, 24, 35,7,16 ,8,75,15, 80,40, ?
Read Solution (Total 3)
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- 48,24,35,7,16,8,75,15,80,40,275,55,102,51,530,106 is the series
48/2=24 & 35/5=7
16/2=8 $ 75/5=15
now we have to add the numbers we get on dividing by 5 and 2 in order to get the next two numbers of the series.
i.e 7+8=15 & 15*5=75
similarly, 15+40=55 & 55*5=275 so the next two numbers are 275 and 55.
its a difficult series so try to understand the solution carefully.
- 10 years agoHelpfull: Yes(7) No(5)
- (48,24),(16,8),(80,40)
(35,7),(75,15)...
7-15=8; 15-x=8. then x=23
next numbers are 23*5=115...(115,23) - 10 years agoHelpfull: Yes(6) No(2)
- 48/2=24,16/2=8,80/2=40
35/7=5,75/15=5
so,35+40=75...7+8=15
75+40=115...15+8=23
115/23=5 - 10 years agoHelpfull: Yes(5) No(4)
IBM Other Question
What is the next number of the following sequences
1. 4,2,-4,-8,32,26,-156
2. 5,10,9,3,6,5,4,8,7,7
3. 6,18,21,8,11,33,2,6,9,5,8,24,7,21
4. 100,98,95,90,83
5. 0,1,2,0,5,2,2,2,2,4,3,2
6. (2/3),(5/3),(19/6),(31/6),(23/3),(32/3),(85/6)
7. 13,24,36,23,34,56,33,44,96,43,54
8. 5,16,22,68,28,87,34,106,11
9. 7726,635,64,9
10. 4,11,66,74,370,379,1516
11. 2,1,2,3,8,0,1,9,1,2
12. 4,2,36,4,5,1,36,16,6,3,81
13. 5,10,25,15,30,75,150,80,155,400
14. 2,3,10,15,26
15. -3,-4,-9,-28
16. 3,8,12,48,29
17. (1/2),(1/2),(1/4),(1/6),(1/8),(1/18),(1/16)
What is the next number of the following sequence
-16, -8,4, 24,12 ,-6, -40,?