Latest IBM Aptitude Question SOLUTION: 1) 33,8,41,46,21,67,72,47,119,124,? 2) 34.274, 34.2744, 34.2784, 34.3184, ? 3) 4.2, 26.0, 8.9, 8.4, 52.0, 17.8, 16.8, 104.0 4) 1,9,0,2,7,1,3,5,2,4,3,? 5) 4,3,6,5,11,10,19,18,30,29,

2) 34.274+0.0004=34.2744
34.2744+0.004=34.2784
34.2744+0.04=34.3184
34.3184+0.4=34.7184

ans is 99
(33,8,41),(46,21,67),(72,47,119),(124,x,y)
33+8=41
46+21=67
72+47=119
124+x=y
now, we observe 33-8=25
46-21=25
72-47=25
hence, 124-x=25
so x=124-25=99 ans

1.) 33,8,41,46,21,67,72,47,119,124,?
Answer is 99
8-33= -25
46-41=5 this is the sequence of series.

3) 4.2, 26.0, 8.9, 8.4, 52.0, 17.8, 16.8, 104.0
Answer is 35.6
as the 4.2,8.4,16.8
4.2*2=8.4
26.0,52.0,104.0
26.0*2= 52.0

4) 1,9,0,2,7,1,3,5,2,4,3,?
Answer is 3
sum of first three terms 1+9+0=10
2+7+1=10
3+5+2=10
so 4+3+3=10

5) 4,3,6,5,11,10,19,18,30,29,?
Answer is 44
3-4= -1
6-3=3
5-6= -1
11-5=6
10-11= -1
19-10= 9
18-9= -1
30-18=12
and 18-19= -1


8) 3.6, 8, 4.1, 10.5, 4.6, 13, 5.1,?
Answer is 15.5
4.1-3.6= 0.5
10.5-8= 2.5
4.6-4.1= 0.5
13-10.5= 2.5
so the answer is 15.5

11) 8, 6, 22, 26, 54, 58, 86, 90, ?
divide in two part
8,22,54,86,?
8*3-2=24
8*7-2=54
8*11-2=86
8*15-2=118 ans

7) 2.5+5.5=8(add two numbers)
36+40.5+263.25=339.75(add three numbers)
8) 3.6*5-10=8
4.1*5-10=10.5
4.6*5-10=13
5.1*5-10=15.5
9) i think above given series is wrong. correct series is 8.2, 3.9, 12.1, 6.2, 4.4, 10.6, 4.2, 4.9, ?
8.2+3.9=12.1
6.2+4.4=10.6
4.2+4.9=9.1

ans11: (8,6),(22,26),(54,58),(86,90),(118,122)
22-26=4
54-22=32
86-54=32

1) 33,8,41,46,21,67,72,47,119,124
answer is 223
33+8=41;
46+21=67;
72+47=119;
(33-46-72= diff of in series 13,26,52
47+52=99;)
124+99=223

1) (33-8)=25 33+8=41,
(46-21)=25 46+21=67, and so on..
(124-99)=25. ans=99
2) lets consider after the decimal .274 .2744 .2784 .3184
so .274 =.2740 =>now, 2740+4=2744, 2744+40=2784, 2784+400=3184, 3184+4000=7184
ans=34.7184
3)consisting of 3 series: (4.2,8.4,16.8), (26,52,104), (8.9,17.8,x)
in a series next number= previous*2;
so x=17.8*2=35.6=ans
4)taking 3 at a time: (1+9+0)=10,((2+7+1)=10 ,... so (4+3+x)=10 , so x=3(ans).
5)(4-3)=1 and 6-3=3
(6-5)=1 11-5=6
(11-10)=1 19-10=9
...so on
(30-29)=1 x-29=15, so x=44(ans)
6)firstly last term given in the series should be 49/4 and not 25/4!!
grouping them into 4: (1,1/2,3/2,2) here 3/2-1/2=2/2=1(the 1st term) and 4th term=numerator 2
(5,1/3,16/3,15) here 16/3-1/3=15/3=5 4th = 15
(12,1/4,49/4,x) here 49/4-1/4=48/4=12 4th = 48.
ans=48.
7)grouped in 2's: 5.5/2.2=5/2
36/8=9/2
263.25/40.5=13/2
748/340=17/2 so ans = 340.here 340 should be given for calculating the pattern.
8)group in 2's: (8-3.6)=4.4, (10.5-4.1)=6.4, (13-4.6)=8.4, (x-5.1)=10.4 so x=15.5(ans)
9)3rd one is the sum of 1st two. given series not complete.one more term should be provided.
10)there are 3 series:every 1st term every 2nd and every 3rd..
(1.25,1.50,1.75,2.00), (3,1,-1,x), (7.1,8.1,9.1,...)
1st series +.25, 2nd -2, 3rd +1; so x=-1-2=-3(ans)
11)grouped into 2: (8,22,54,86,x), (6,26,58,90,...)
1st series: 8*3-2=22, 8*7-2=54, 8*11-2=86, 8*15-2=118=x=ans.
2nd series: 6*4+2=24, 6*9+4=58, 6*14+6=90 and so on...

1)99
2)34.7184
3)35.6
4)3
5)44
6)19
8)15.5
10)-3
11)100

8,-6,22,26,54,58,86,90
-6+28=22
26+28=54
58+28=86
90+28=118
ans: 118

1)...,8,.. ....,21,.... ....,47,.... ......,??????

8*2+5 = 21
21*2+5 = 47
47*2+5 = 99

10) 1.25, 3, 7.1, 1.50, 1, 8.1, 1.75, -1, 9.1, 2.00,?
(1.25, 3, 7.1), (1.50, 1, 8.1),( 1.75, -1, 9.1), (2.00,x,y)
1.25+.25=1.50
3-2=1
7.1+1=8.1

1.50+.25=1.75
1-2=-1
8.1+1=9.1

1.75+.25=2.00
-1-2=-3
9.1+1=10.1

x=2.00+.25=2.25

5) 4,3,6,5,11,10,19,18,30,29,?
4-3=1 and 6-3=3
6-5=1 and 11-5=6
11-10=1 and 19-10=9
19-18=1 and 30-18=12
30-29=1 and "x-29=15" or x=15+29 or x=44

10. 1.25, 1.50,1.75,2.00 and 7.1 8.1 9.1 and 3 1 -1 are three series
next will be -1-2 =-3 ans

1)99
2)34.3112(not sure)
3)25.6
4)3
5)44
8)15.5
9)9.1(i think question is wrong)
10)-3

2.2,5.5,8,36,40.5,263.25,340,748,1714,?
(2.2,5.5),(8,36),(40.5,263.25),(340,748),(1714,x)
5.5=2.2*2+2.2/2
36=8*4+8/2
263.25=40.5*6+40.5/2

748=2*340+340/5

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6) 1,1/2, 3/2 , 2, 5, 1/3, 16/3, 15, 12, 1/4, 25/4, x
divide the series in two series by alternative terms division,i.e. first item in first and second item in second series and so on...
we get
1,3/2,5,16/3,12,25/4 and 1/2,2,1/3,15,1/4,x
now if we add first two terms of first series it is equal to sum of first two terms of second series
1+3/2=5/2 and 1/2+2=5/2
hence 12+25/4=1/3+x which gives x=18 hence 18 is the answer

7) 2.5, 5.5, 8,36,40.5, 263.25, x
8-5.5= 2.5
40.5-36=4.5 we see that difference is increasing by (4.5-2.5)=2
hence diff b/w (x-263.25)=6.5
x= 269.75 ans

34.274+0.0004=34.2744
34.2744+0.004=34.2784
34.2744+0.04=34.3184
34.3184+0.4=34.7184
so ans i s 34.7184

4.3 patterns are there.
1,2,3,4
9-2=7,7-2=5..
9,7,5,3
0,1,2,3
so answer is 3

7) 2.5, 5.5, 8, 36, 40.5, 263.25?
(2.5 * 2)+5 = 5.5
(8*4)+4 = 36
(40.5*5)+3=263.5

3)4.2, 26.0, 8.9,8.4, 52.0, 17.8, 16.8, 104.0
answer is (26.7,25.2)
26.0 , 52.0, 104.0 (each by *2)
8.9-8.4=0.5;
17.8-16.8=1.0; (8.9*2 - 8.4*2)
26.7-25.2=1.5; (8.9*3 - 8.4*3)

11) dif of nums are like 2 ,16,4,28,4,28,4, x
then x should be 16
16+90=106

10) 3-2=1
1-2=-1
-1-2=-3

1)ans 86
divide the sequence into 3 parts
33,8,41(33+8=41) and 46,21,67(46+21=67)and 72,47,119(72+47=119),124,?
here we have to derive or establish a relationship between 8,21,47,?
8+13(13*1)=21
21+26(13*2)=47
47+39(13*3)=86

7)263.25+6.5=269.75
ans:269.75

5) 4,3,6,5,11,10,19,18,30,29
Take it as pairs (4,3) (6,5) (11,10) (19,18) (30,29)
Calculate difference between next pair's x and previous pair's y
6-3=3 (1*3)
11-5=6 (2*3)
19-10=9 (3*3)
30-18=12 (4*3)
So next number should be
44-29= 15 (5*3)
So the answer is 44

5> 4 ,3 ,6 ,5 ,11 ,10 ,19 ,18 ,30 ,29 ,?
|..-1..+3..-1..+6..-1.. +9 .. -1.. +12.. -1..+15 (Answer will be 29+15=44)

8) 15.5 IS CORRECT ANSWER

5) 4,3,6,5,11,10,19,18,30,29
first make pairs of 2 number each..
(4,3) (6,5)(11,10)(19,18)(30,29)
difference between 3 and 6 is 3
difference between 5 and 11 is 6
likewise
u will see that all the difference is the multiple of 3 and the last multiple is 15 so add 15 to 29 you will get 44 SO (44,43) ANS

1) 99 (+13, +26 + 52)
2) 24.7184 (+.0004, + .004, + .04)
3) 35.6 (16.8 * 2 + 0.5 * 2 * 2)
4) 56 (x, x* 3 +1, x *3 -1 )
5) 44 (-1 + n*3)
6) 1/5 (int, int, 1/n)
7) 308.75 (dec1, dec2, dec1+ dec2)
8) 15.5 (+4.4 + 2 * n, -3.9 + 2*n)
9) 9.1 (a, b, a + b)
10) -3 (x, x- 2, x- 4)
11) 118 (x, x + 4, (x + 4) +28)

7) 2.5 , 5.5, 8 ,36, 40.5, 263.25

consider the alternate numbers 2.5 , 8 , 40.5
2.5*3 +0.5=8
8*5 + 0.5= 40.5
40.5*7 +0.5= 284

ans 284