Latest IBM Aptitude Question SOLUTION: Q. What is the next number of the following sequences. 1. 8,5,9,7,2,25,51,16,8,6,... 2. 13,21,32,49,78,131,...

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Q. What is the next number of the following sequences.

1. 8,5,9,7,2,25,51,16,8,6,...

2. 13,21,32,49,78,131,...

Asked In IBM vanibobba (10 years ago)

Unsolved Read Solution (6)

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Read Solution (6) :

vanibobba  (10 years ago)

1)correct series is
8,5,9,7,2,25,5,1,16,8,6
8-5=3 ->3^2=9
7-2=5 ->5^2=25
5-1=4 ->4^2=16
8-6=2 ->2^2=4
ans is 4

Is this solution Helpfull? Yes (24) | No (1)  

tejadeepthi  (10 years ago)

13*2-5=21 21*2-10=32 32*2-15=49 49*2-20=78 78*2-25=131 131*2-30=232

Is this solution Helpfull? Yes (19) | No (1)  

Wasim Ahmed  (10 years ago)

2)
21-13=8,11-8=3
32-21=11,17-11=6
49-32=17,29-17=12
78-49=29,53-29=24
131-78=53,x-53=48=101
so ans is 101+131=232

Is this solution Helpfull? Yes (7) | No (1)  

himabindu  (10 years ago)

2Q)(21-13),(32-21).(49-32),(78-49),(131-78),(x-131)
8 11 17 29 53 y
(11-8),(17-11),(29-17),(53-29),(y-53)
3 6 12 24 48
so,y-53=48 ==>y=101 and
x-131=y i.e.,x=y+131==>x=101+131=232
hence,Ans:232

Is this solution Helpfull? Yes (5) | No   

akhilesh kumar  (10 years ago)

2. 13,21,32,49,78,131,...
21-13=8
32-21=11
49-32=17
78-49=29
131-78=53
232-131=101
so 11-8=3
17-11=6
29-17=12
53-29=24
101-53=48
hence 131+48=179 which is the correct ans .

Is this solution Helpfull? Yes (2) | No (4)  

anusha  (10 years ago)

12) 7.2,2.2,3.2,16,11,12,60,55,56
take 3 7.2-5=2.2
2.2+1=3.2
16-5=11
11+1=12
60-5=55
55+1=56
so ANS=56

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