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Aptitude Odd Man Out Series Test Yourself

2605.6, 9, 15, 21, 24, 28, 30
28
21
24
30
Explanation:

Each of the numbers except 28, is a multiple of 3.

44427.15,16,34,105,424,2124,12576
12576
2124
105
15
Explanation:

Second term = First term * 1 + 1 = 16
Third term = Second term * 2 + 2 = 34
Forth term = Third Term * 3 + 3 = 105
Fifth term = Forth term * 4 + 4 = 424
Sixth term = Fifth term * 5 + 5 =2125
Seventh term = Sixth term * 6 + 6 = 12576.
So 2124 is wrong.
44428.1,1,2,6,24,96,720
1
720
96
24
Explanation:

Multiply with 1,2,3,4,5,6 to get the next number.
So 96 is wrong.
44429.Find out the odd one out.
10,14,28,32,64,68,132.
68
14
132
28
Explanation:

Alternatively add 4 and double the next term.
So 132 is wrong.
44430.Find the odd one out.
105,85,60,30,0,-45,-90
30
-90
0
105
Explanation:

Subtract 20,25,30,35,40,45 from the terms.
So 0 is odd one.
44431.Find out the odd one out.
4,9,19,39,79,160,319
39
160
319
19
Explanation:

Double the number and add 1 to it.
So the series will be 4,9,39,79,159,319.
So 160 is wrong.
44432.19,26,33,46,59,74,91
91
59
33
19
Explanation:

Go on adding 7,9,11,13,15,17.
So 33 is wrong.
44433.32,36,41,61,86,122,171,235
235
40
171
61
Explanation:

Second term = First term + 22
Third term = Second term + 32
Fourth term = Third term + 42
Fifth term = Forth term + 52
Sixth term = Fifth term + 62
Seventh term = Sixth term + 72
So the third term should be 45 instead of 41.

44434.Find the wrong number in the given series.
3,8,15,24,34,48,63
34
24
63
3
Explanation:

The difference between consecutive terms are
respectively 5,7,9,11,13.
So 34 is the wrong number in the series.
44436.Find out the odd one out.
3,10,21,36,55,70,105
70
36
3
105
Explanation:

The pattern in the series is
1*3, 2*5, 3*7, 4*9, 5*11, 6*13, 7*15.
So the series will be 3,10,21,36,55,78,105.
So 70 is wrong term in the series.
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