Question

Conjecture: The next number in this sequence:

20, 18, 15, 11, 6, _____
will be 1. Is this conjecture true?

Yes.
No, it will be 10.
No, it will be 5.
No, it will be 0.
No, it will be 15.

Answer 1

The answer is no, it would be 0.

Answer 2

No, it will be 0.

In the sequence each number is subtract 1 more then what was subtracted from the previous number.

20 - 2 = 18

18 - 3 = 15

15 - 4 = 11

11 - 5 = 6

Now, we know that 6 will be subtracted by 6.

6 - 6 = 0

Hope this Helped! Good Luck!