Multiple choice

Select the term that will come next in the following series. $2, 7, 17, 32, 52, ?$

  1. $77$
  2. $134$
  3. $126$
  4. $102$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The differences between consecutive terms are: 7-2=5, 17-7=10, 32-17=15, 52-32=20. The differences increase by 5 each time. The next difference should be 25, so 52+25=77 (option A).