1, 4, 9, 16, 25, 36, 49, … 81
Answer: C
Solution. (c) The series is 12, 22, 32, 42, 52,62, 72,….
The next number is 82 = 64
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3, 8, 15, 24,…48
Answer: D
Solution. (d) The series is 22 – 1, 32 –1, 42 – 1,52 – 1. etc.
The next number is 62 – 1 =35
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0, 6, 24, 60,…. 210
Answer: D
The series is 13 – 1 = 0, 23 – 2 = 6, 33 – 3 = 24, etc.
The next number is 53 – 5 = 120
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1010, 8020, 27030, 64040,….
Answer: B
The series is 103 + 10 = 1010, 203 + 20 = 8020, etc.
The next number is 503 + 50 = 125050
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2, 9, 28, 65,…217
Answer: D
The series is 13 +1, 23 + 1, 33 + 1, etc.
The next number is 53 + 1 = 126
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110, 132, 156, 182,….
Answer: D
Solution. (d) The series is 102 + 10, 112 + 11, 122 + 12, etc.
The next number is 142 + 14 = 210
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0, 2, 6, 12, 20,….42
Answer: B
Solution. (b) The series is 12 – 1 = 0, 22 – 2 = 2, 32 – 3 = 6, etc.
The next number is 62 – 6 = 30
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1001, 8001, 27001, 64001, 125001,…
Answer: B
The series is 103 + 1, 203 + 1, 303 + 1, etc.
The next number is 603 + 1 = 216001
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1, 8, 27, 64,…. 216
Answer: A
Solution. (a) The series is 13, 23, 33 , 43, etc.
The next number is 53 = 125
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