Directions: The following number series are based on a certain pattern. One number out of all is incorrect and does not follow the pattern. Find that odd one out.
- 1000, 995, 999,9 80, 950, 830
1000995999980950Option C
1000 .. 995 .. 990 .. 980 .. 950 830– 5 .. 5 .. 10 .. 30 .. 120
….x 1 .. 2 .. 3 .. 4
- 20, 25, 31.1, 38.4, 40, 57
2025405731.1Option C
20 …. 25 …. 31.1 …. 38.4 …. 47 …. 57……+ 5 …. 6.1 …. 7.3 …. 8.6 …… 10
………. + 1.1 …. 1.2 …. 1.3…. 1.4
- 200, 184,164, 135, 90, 40
2001841649020Option E
200 184 164 135 90 20– 16 20 29 45 70
+ 2^2 3^2 4^2 5^2
- 1, 1, 5, 70, 2000, 115500
15702000115500Option D
1 1 5 70 2100 115500x 1 5 14 30 55
+ 2^2 3^2 4^2 5^2
- 15, 25, 36, 52, 70, 115
1525365270Option E
15 25 36 52 77 115+ 10 11 16 25 38
+ 1 5 9 13
- 30, 31, 36, 41, 56, 87
3031364156Option C
30 31 34 41 56 87+ 1 3 7 15 31
+ 2^1 2^2 2^3 2^4
- 300, 245 , 190, 160, 150, 175
300245190160150Option C
300 245 195 160 150 175– 55 50 35 10 -25
-5 15 25 35
- 10, 13, 21, 47, 84, 155
1013214784Option D
10 13 21 42 84 155+ 3 8 21 42 71
+ 5 13 21 29
+ 8 8 8
- 20, 24.5, 30.5, 39.5, 53.5 , 72.5
532030.524.539.5Option A
20 24.5 30.5 39.5 53 72.5+ 4.5 6 9 13.5 19.5
+1. 5 3 4.5 6
+ 1.5 1.5 1.5
- 14, 34, 64 , 124, 262
143464124262Option D
+ 14 34 64 122 262+ 20 3 0 58 140
+ 1+3^2 1+3^3 1+3^4