Series is an important chapter for competitive exams. In every exam you will find at least 5 questions from this chapter. Today I am sharing 10 questions that are repeated in the exams.
Ans 3. The difference between the number in this series is the sum of two previous differences .
Ques 1.
8 , 10 , 6 , 4 , 3 , ?
(a) 8
(b) 2
(c) 3.5
(d) 2.5
Ans 1. The difference between the numbers is reduced by half at each step.
Ques 2.
2, 6, 12, 20 , 30 , 42 ?
(a) 50
(b) 52
(c) 54
(d) 56
Ans 2. The difference between the numbers in this series is increased by 2 at each step.
Ques 3.
3, 5, 9, 15, 25, 41 , 67, ?
(a) 108
(b) 52
(c) 110
(d) 111
Ans 3. The difference between the number in this series is the sum of two previous differences .
( 2+4) ( 4+6) (6+10)(10+ 16) (16 +26)
Ques 4.
1, 6, 15, ? 45, 66 , 91
(a) 25
(b) 26
(c) 27
(d) 28
Ans 4. The difference between the number in this series is increased by 4 at each step .
Ques 5.
1 ,2 ,5 , 12 , 27 , 58 , 121, ?
(a) 246
(b) 247
(c) 248
(d) 249
Ans 5. The sequence in this series is number into 2 plus the numbers in natural order starting . from 0.
Ques 6.
4 , 9, 16 , 25 , 36, ?
(a) 47
(b) 48
(c) 49
(d) 64
Ans 6. The number s in the series are squares of numbers in natural order starting from 2.
Ques 7.
3 , 8 , 15 , 24 , ? 48 , 63
(a) 30
(b) 32
(c) 35
(d) 36
Ans 7. The numbers in this series are the squares of numbers in natural order minus 1 starting from 2.
Ques 8.
9 , 16 , 30 , 58, ?
(a) 104
(b) 114
(c) 116
(d) 118
Ans 8. The difference between the number is doubled at each step.
Ques 9.
5, 14 , 41 , 86 , ?
(a) 149
(b) 123
(c) 157
(d) 131
Ans 9. The difference between the numbers is the multiple of 9 with odd numbers .
Ques 10.
2, 11 , 7 , 16 , 12, ? 17 , 26
(a) 21
(b) 8
(c) 11
(d) 76
Ans 10. The sequence in the series is +9, -4 which is repeated .
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