Latest IBM Aptitude Question SOLUTION: 1) 3,7,10,8,4,12,0,5,5,3,2,? 2) 11,8,17,14,23,24,31,32,? 3) 5,10,9,3,6,5,4,8,7,? 4)13,14,15,16,18,19,20,22,23,? 5) 0.8,1.8,3.6,4.6,9.2,9.2,10.2,? 6)12,3,15,14,6,19,16,9,23,18,

(1) 3, 7, 10, 8, 4, 12, 0, 5, 5, 3, 2, x
3 + 7 = 10
8 + 4 = 12
0 + 5 = 5
3 + 2 = 5
Ans : 5


(5) 0.8, 1.8, 3.6 ,4.6, 9.2, 9.2, 10.2, x
0.8 + 1 = 1.8
1.8 * 2 = 3.6
3.6 + 1 = 4.6
4.6 * 2 = 9.2
9.2 + 1 =10.2
10.2 * 2 = 20.4
Ans : 20.4


(6) 12, 3, 15, 14, 6, 19, 16, 9, 23, 18, 12, x
12 + 3 = 15 => 15 - 0 = 15
14 + 6 = 20 => 20 - 1 = 19
16 + 9 = 25 => 25 - 2 = 23
18 + 12=30 => 30 - 3 = 27
Ans : 27


(7) (49, 6), (25, 4), (36, 5), (81, x)
(49, 6) ==> (7^2, 7-1)
(25, 4) ==> (5^2, 5-1)
(36, 5) ==> (6^2, 6-1)
(81, x) ==> (9^2, 9-1) --> x=8
Ans : 8


(8) 0.5, 2, 3, 4.5, 6.75, x
0.5 + 1.5 = 2
2 * 3/2 = 3
3 + 1.5 = 4.5
4.5 * 3/2 = 6.75
6.75 + 1.5 = 8.25
Ans : 8.25


(9) (1, 9, 0), (2, 7, 1), (3, 5, 2), (4, 3, x)
In each group, 1st number increases by "1" ----> 1, 2, 3, 4
In each group, 2nd number decreases by "2" ----> 9, 7, 5, 3
Similarly In each group, 3rd number increases by "1" ----> 0, 1, 2, 3
Ans : 3


(10) (3, 2, 1), (4, 5, 4), (5, 1, 0), (6, 3, x)
In each group
3rd number = 2nd number - 1
1 --> 2 - 1
4 --> 5 - 1
0 --> 1 - 1
x --> 3 - 1
Ans : 2


(12) (1, 1), (1, 2), (4, 12), (36, x)
1 * 1 = 1
1 * 2 = 2
4 * 3 = 12
36 * 4 = 144
Ans : 144



(13) (24, 42, 1/2, 2), (65, 56, 6/5, 5/6), (73, 37, 7/3, x)
In each group
2nd number is obtained by reverse of 1st number --> rev of 24 = 42
3rd number --> divide first digit by second digit --> 2/4 = 1/2
4th number --> inverse of 3rd number --> 2/1 = 2
65
56
6/5
5/6
73
37
7/3
3/7
Ans : 3/7


(15) (3, 4.5, 7), (4, 6, 8.5), (5 , 7.5, 10), (6, x, y)
1st number increases by "1" ---> 3, 4, 5, 6
2nd number increases by "1.5" ---> 4.5, 6, 7.5, 9
3rd number increases by "1.5" ---> 7, 8.5, 10, 11.5
Ans : 9, 11.5


(16) ( -27, 9, -3),(81, -27, 9), (54, x, y)
-27/-3 = 9
9/-3 = -3
81/-3 = -27
-27/-3 = 9
54/-3 = -18
-18/-3= 6
Ans : -18, 6

2) 11,8,17,14,23,24,31,32,?
sol:
clearly
11-0=11
13-5=8
17-0=17
19-5=14
23-0=23
29-5=24
31-0=31
37-5=32
41-0=41

ans: 41

11)Ans=10/13
there are two sequences:(1/7,4/9,7/11) and (3/4,5/6,7/8) so, for the 1st sequence next term will be 10/13 and for 2nd sequence next term will be 9/10

(3)5,10,9,3,6,5,4,8,7,?

(5,10,9)
(3,6,5)
(4,8,7)
ans:(2,4,3)
sequence of first number in each box is 5,3,4 means 4 after 5 like that 3 after 2.
the diff b/w 2nd num in each box is 2. so 2nd one num is=4,now see the sequence everyone said the next num is 3.
ans:(2,4,3)

3.ans:
(5,10,9),(3,6,5),(4,8,7)
5*2=10---->10-1=9
3*2=6----->6-1=5
4*2=8----->8-1=7
in first column 5-2=3
3+1=4
so 4-2=2
2*2=4----->4-1=3
so ans is (2,4,3)

17)56,89,33,21,57,88,35,19,60,85,39,15,?

let us take the series 56,57,60,x?
56+1=57
57+3=60
60+5=65
so answer is 65.

14)1,2,2,4,8,1,8,1/2,4,1,4,4,_
2/2=1,4/2=2,8/4=2,8/1=8,4/(1/2)=8,4/1=4,16/4=4
so ans=16

1) Ans= 6
3+7=10
8+4=12
0+5=5
3+2=6

2) Ans=39
11+6=17
17+6=23
23+8=31
31+8=39

4)Ans = 25
(13,14,15,16) 17 (18,19,20) 21 (22,23) 24 (25)

5) Ans = 20.4
1.8 *2 = 3.6
4.6 *2 = 9.2
10.2 *2 = 20.4

6) Ans : 27
15+4 = 19
19+4 = 23
23+4 = 27

7) Ans = 8
(49,6),(25,4),(36,5),(81,8)

8) 0.5,2,3,4.5,6.75?
QUESTION IS WRONG.
sequence ll be like
0.5+1.5=2
2+1=3
3+1.5=4.5
4.5+1=5.5
5.5+1.5=7.0

9)1,9,0,2,7,1,3,5,2,4,3,?
1,9,0
2,7,1
3,5,2
4,3,?
IN 1ST COLUMN THE SEQUENCE LL BE LIKE,1,2,3,4
IN 2ND COLUMN SEQUENCE LL BE LIKE -2 SERIES 9,7,5,3
IN 3RD COLUMN SEQUENCE LL BE LIKE 0,1,2,?
ANSWER IS 3

12) Ans =
(1,1),(1,2),(4,12),(36,)
1 * 1 = 1
1 * 2 = 2
4 * 3 = 12
36 * 4 = 144

13) (1,2),(2,4),(8,1),(8,1/2),(4,1),(4,4)
1 *2 = 2
2*4 = 8
8*1= 8
8 *1/2 = 4
4*4 = 16

17) 65

10)Ans=2
3+2=5,5-4=1;
4+5=9,9-5=4;
5+1=6,6-6=0;
6+3=9,9-7=2

15)ans=9
(3+4.5=7.5),(7.5-0.5=7);
(4+6=10),(10-1.5=8.5);
(5+7.5=12.5),(12.5-2.5=10);
(6+x-3.5)=11.5;
therefore,x=9

17)Take series as (56,89,33,21)
(57,88,35,19)
(60,85,39,15)
ANS(65,90,45,21)

make 4 elements as one group and compare with next 4 element group +1,-1,+2,-2and again with next 4 element group +3,-3,+4,-4 there fore the element in next 4 element gp by comparing with previous is 60+5=65 is the ans

3>(5,10)9(3,6)5(4,8)7(6,12)
10-1=9
6-1=5
8-1=7

14) (1,2,2,4) (8,1,8,1/2) (4,1,4,4) (x,_,_,_)
4*2=8 (first digit of next group)
1/2*4=4
so, 4*4=16 ans

13) 24,42,1/2,2,65,56,6/5,5/6,73,37,7/3,?
solution:

24->reverse 42
1st digit div by 2nd->2/4->1/2 reverse 2
similarly
73->reverse 37
7/3 reverse 3/7
Amswer is 3/7.

13)ans=3/7

16) -27,9,-3,81,-27,9,54,?

9x(-3)=-27
-3x3=9
-27x3=81
9x(-3)=-27
similarly...
18x3=54

ans is 18
ans is 18

ans for 3 Q pls

Pls give ans for 3 n 14

2) 11,8,17,14,23,24,31,32
Ans:11-3=8
8+9=17
17-3=14
14+9=23
23+1=24
24+7=31
31+1=32
32+7=39
So the Ans is:32,39.....

1/7 => 7-1=6
4/9 => 9-4=5
7/11 => 11-7=4
10/13 => 13-10=3
1 skip is required for numerator and difference between numerator is 3.
So 1+3=4 & 4+3=7 & 7+3=10
So the answer is = 10/13.

1) 3+7=10
8+4=12
0+5=5
3+2=5

Answer for 3rd question is 2.

5,10 (multiply by 2) ....10-1=9
3,6 (multiply by 2) ....6-1=5
4,8 (multiply by 2) ....8-1=7

consider the series 5,3,4,?
9-(5+1)=3
5-(3+1)=4
7-(4+1)=2

so 2 is the answer

12). 1*1=1,1*1=1;
1*2=2,2*2=4;
4*3=12,12*3=36;
36*4=144,144*4=576;

3)5,10,9,3,6,5,4,8,7,_
5,6,7..... one series
10,5,...2nd series diff=5 ,next no= 0
9,4,..3rd series diff=5 , next no= -1
3,8,...4th series diff=5, next no= 13
5,10,9,3,6,5,4,8,7,0,-1,13

(11,17,23,31,x) all are alternate prime no. and (8,14,24,32) all are even no.
so we find the value of x .since in first row all are prime no.so the value of x=41.