Directions (1-15): Find the wrong number in the following number series given below:
Q1. 3, 11, 38, 100, 227, 443, 786
(a)227
(b)3
(c)100
(d)38
(e)786
Q2. 6, 11, 21, 43, 85, 171, 341
(a)11
(b)6
(c)43
(d)85
(e)171
Q3. 7.5, 7.5, 15, 5, 20, 4, 28
(a)28
(b)15
(c)5
(d)20
(e)4
Q4. 5, 3, 4, 7.5, 15, 45, 138
(a)4
(b)7.5
(c)45
(d)3
(e)15
Q5. 604, 572, 537, 499, 458, 414, 368
(a)604
(b)368
(c)414
(d)458
(e)499
Q6. 23, 46, 75, 106, 143, 184, 224
(a)106
(b)143
(c)184
(d)23
(e)224
Q7. 0.50, 2, 4.5, 18, 28.5, 86, 172.5
(a)18
(b)2
(c)28.5
(d)172.5
(e)86
Q8. 730, 705, 655, 580, 475, 355, 205
(a)205
(b)730
(c)355
(d)475
(e)705
Q9. 57, 64, 78, 106, 170, 274, 498
(a)498
(b)78
(c)106
(d)170
(e)57
Q10. 198, 186, 172, 154, 130, 104, 56
(a)186
(b)198
(c)104
(d)130
(e)56
Q11. 12.5, 19, 25.5, 31, 38.5, 45, 51.5
(a)31
(b)25.5
(c)51.5
(d)12.5
(e)38.5
Q12. 57600, 4800, 480, 60, 12, 2.5, 1.25,
(a)480
(b)12
(c)2.5
(d)4800
(e)1.25
Q13. 5, 86, 174, 276, 399, 558, 736
(a) 276
(b) 736
(c) 558
(d) 86
(e) 399
Q14. 16, 20, 30, 52, 98, 190, 382
(a)98
(b)52
(c)20
(d)190
(e)16
Q15. 800, 780, 760, 720, 640, 480, 160
(a)480
(b)760
(c)780
(d)160
(e)800
Solutions
















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