Number series: terms are cubes or built from cubes (n cubed, n cubed - 1, n cubed + n squared)

This type of question, asked 6 times: 14 Sep 2025 S3, 16 Sep 2025 S3, 17 Sep 2025 S3, 20 Sep 2025 S1, 21 Sep 2025 S3, 24 Sep 2025 S1. All 6 questions below, oldest first.

Try each one first, then open its answer.

Question 1
14 Sep 2025 S3
6 $What will come at the place of question mark? 1, 9, 31, 73, 141, ?$
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Question 2
16 Sep 2025 S3
6 $Complete the pattern : 2, 12, 36, 80, 150, ?$
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Question 3
17 Sep 2025 S3
9 $Complete the series : 1331, 10648, 35937, 85184, ?$
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Question 4
20 Sep 2025 S1
22 $What should come at the place of question mark? : 8, 27, 64, 125, ?, 343$
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Question 5
21 Sep 2025 S3
15 $Complete the series:0, 7, 26, 63, ?$
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Question 6
24 Sep 2025 S1
19 $Complete the series. 1, 27, 125, ?$
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Number series: terms are cubes or built from cubes (n cubed, n cubed - 1, n cubed + n squared)

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6