Direction (1-10): In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number.
Q1.12, 22, 33, 45, ?, 72
(a)58
(b)66
(c)54
(d)60
(e)63
Q2. 7, 15, ?, 59, 117, 235
(a)21
(b)43
(c)29
(d)55
(e)35
Q3. 1, 28, 92, 217, ?, 776
(a)387
(b)433
(c)513
(d)612
(e)556
Q4. 22.5, 45, ?, 60, 12, 72
(a)22.5
(b)135
(c)50
(d)15
(e)90
Q5. 5.5, 9, 12.5, 16, 19.5, ?
(a)22
(b)24.5
(c)22.5
(d)23.5
(e)23
Q6. 169, 1331, ?, 125, 9, 8
(a)81
(b)343
(c)49
(d)729
(e)100
Q7. ?, 4, 18, 48, 100, 180
(a)0
(b)1
(c)2
(d)-1
(e)-2
Q8. 7, 4, 5, 12, ?, 424
(a)42
(b)52
(c)108
(d)214
(e)94
Q9. 1, 5, 25, 125, ?, 3125
(a)2025
(b)525
(c)725
(d)1125
(e)625
Q10. 145, 157, 133, ?, 121,181
(a)186
(b)172
(c)144
(d)169
(e)152
Solutions
. . . . . . . . . . . .