Question

Find the next term in each sequence.

Question 1:
0, 1, 3, 7, ? .
Question 2:
35, 33, 29, 21, ?.
Please Include an Explanation of how to solve problems like this!
Thanks a ton!

Answer 1

Question 1 is 15. It is the number added prior times 2. So since 4 was added prior, 8 was added next.

Question 2 is 5. It is the same as the first one but backwards. You would take the amount subtracted last time, multiply it by 2, and then subtract it from the number. Since 8 was subtracted last, 16 was subtracted this time.