Multiple choice

Find the next term of the given series. 6, 7, 9, 12, 16, ?

  1. 19

  2. 20

  3. 21

  4. 23

  5. 24
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Differences: 7-6=1, 9-7=2, 12-9=3, 16-12=4. Next difference should be 5. 16+5 = 21.

AI explanation

The differences between the terms are increasing consecutive integers: 7 minus 6 is 1, 9 minus 7 is 2, 12 minus 9 is 3, and 16 minus 12 is 4. The next difference must be 5. Adding 16 and 5 gives 21.

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