IBM
Company
Numerical Ability
Sequence and Series
What is the next number of the following sequences
1) 5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3,....
2) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3,....
3) 6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2,....
4) 24, 42, 1/2, 2, 65, 56, 1 1/5, 5/6, 73, 37,....
5) 4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9,.....
6) 8, 16, 3, 27, 4, 8, 7, 19, 2, 0, 7,.....
Read Solution (Total 12)
-
- 1)5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3, X
(5, 1, 2,8), (8, 1, 0, 9), (9, 2, 3,X)
5+1+2=8
8+1+0=9
9+2+3=x=14
2) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3
5+1+2=8,8+1+0=9,9+2+3=14,14+1+3=18
3) 6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2
(6,3,3,9),(12,5,7,35),(8,6,2,X)
(3+3,3,3,3*3),(5+7,5,7,5*7),(6+2,6,2,6*2)
X=12
4) 24, 42, 1/2, 2, 65, 56, 1 1/5, 5/6, 73, 37
24, 42, 1/2, 2, 65, 56, 6/5, 5/6, 73, 37
(24,42),(1/2,2),(65,56),(6/5,5/6),(73,37),(x,y)
cosider 1st no. of each group
(24,1/2),(65,6/5),(73,x)
(24,2/4),(65,6/5),(73,7/3)
so x=7/3 y=3/7
or x=2 1/3 y=3/7
5) 4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9
(4,2,5),(9,5,11),(13,7,16),(17,9,x)
third group is sum of 1st & 2nd
4+9=13
2+5=7
5+11=16
4th group is sum of 1st & 3rd
4+13=17
2+7=9
5+16=x=21
so x=21
6) 8, 16, 3, 27, 4, 8, 7, 19, 2, 0, 7 ,x
(8,16,3,27),(4,8,7,19),(2,0,7,x)
8+16+3=27
4+8+7=19
2+0+7=9=x
or x=9
- 11 years agoHelpfull: Yes(41) No(0)
- 5+1+2=8
8+1+0=9
9+2+3=14 - 11 years agoHelpfull: Yes(3) No(0)
- 5+1+2=8
8+1+0=9
9+2+3=14
14+1+3=18 - 11 years agoHelpfull: Yes(2) No(0)
- 3) 6,3,3,9,12,5,7,35,8,6,2
(6,3,3,9) (12,5,7,35) (8,6,2,?)
3+3=6,3*3=9
7+5=12,7*5=35
6+2=8,6*2=12 - 11 years agoHelpfull: Yes(2) No(0)
- 1) 5+1+2=8
8+1+0=9
9+2+3=14 - 11 years agoHelpfull: Yes(1) No(0)
- 6)8,16,3,27,4,8,7,19,2,0,7
8+16+3=27
4+8+7=19
2+0+7=9
- 11 years agoHelpfull: Yes(1) No(0)
- First make group of three
(4,2,5) (9,5,11) (13,7,16) (17,9,x)
Now,
In 1st Group: 5-4=1
In 2nd Group: 11-9=2
In 3rd Group: 16-13=3
Similarly,In 4th Group: x-17=4 ; x=21 Ans - 11 years agoHelpfull: Yes(1) No(0)
- By multiplying 2nd & 3rd digit we get 4th digit,
6,3*3=9 ie 6,3,3,9
12,5*7=35 ie 12,5,7,35
8,6*2=12 ie 8,6,2,12
Is this right?? - 11 years agoHelpfull: Yes(0) No(0)
- 5)
(4,2,5)
(9,5,11)
(13,7,16)
(17,9,x)
Take row diff
1st column- 5,4,4
2nd column- 3,2,2
3rd column- 6,5,(x-16)
x-16 = 5
x=21 - 11 years agoHelpfull: Yes(0) No(0)
- 24 reverse 42 , 1/2 reverse 2
65 reverse 56 , 1 1/5=6/5 reverse 5/6
73 reverse 37 , next is 7/3 or 2 1/3
- 11 years agoHelpfull: Yes(0) No(0)
- 4) 24, 42, 1/2, 2, 65, 56, 1 1/5, 5/6, 73, 37
24=42 take two digit of 24 and 42 ie 24
2/4=1/2
1/2=2
65=56 agn take two digit ie 65
6/5
65=56
73=37
7/3
so d next nu is 37
- 11 years agoHelpfull: Yes(0) No(0)
- 4) 24,42,1/2,2,65,56,1 1/5 ,5/6,73,37,?
first no=24
2nd no= reverse of 1st no= 42
3rd no= divide the digits in the 1st no(24) 2/4=1/2
4th no =divide the digits in 2nd no(42) 4/2=2
similarly ..
next no=65
reverse of 65 =56
divide the digits in the 1st no(65)=6/5 ,not that we can write 6/5 as 1 1/5 ( (1*5+1)/5 ) .so the next no is 1 1/5
divide the digits in 56=5/6
similarly
1st no= 73,
reverse of 73=37
divide the digits in 73=7/3, so the next no wil be 7/3 or 2 1/3
- 11 years agoHelpfull: Yes(0) No(0)
IBM Other Question
Q. What is the next number of the following sequence.
4, 3, 144, 1.5, 2, 9, 3.2, 2,....
Q. What is the next number of the following sequence.
3,2,1,4,5,0,6,3,4