Multiple choice

The next term of the sequence 1, 2, 4, 7, 11,....... is

  1. 15

  2. 16

  3. 17

  4. 18
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The differences are: 2-1=1, 4-2=2, 7-4=3, 11-7=4. The next difference should be 5. 11+5 = 16.

AI explanation

The differences between the consecutive terms increase by 1 each time. The differences are 2 minus 1 equals 1, 4 minus 2 equals 2, 7 minus 4 equals 3, and 11 minus 7 equals 4, so the next difference must be 5. Adding 5 to the last term gives 11 + 5 = 16. The next term is 16.

Keep practicing — related questions