Multiple choice

Find the missing term in the following series. 7, 24, 75, 228, 687, ?

  1. 1805

  2. 1955

  3. 2064

  4. 2105

  5. 2255

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The series follows the pattern: 7*3+3=24, 24*3+3=75, 75*3+3=228, 228*3+3=687, 687*3+3=2064.

AI explanation

The pattern requires multiplying each term by 3 and then alternately subtracting 3 and adding 3. We multiply 7 by 3 and subtract 3 to get 24, multiply 24 by 3 and add 3 to get 75, and multiply 75 by 3 and subtract 3 to get 228. Following the same rule, we multiply 687 by 3 and add 3 to get 2064. Therefore, the missing term is 2064.