Multiple choice

Directions: Find the missing term in the following series. 7, 20, 46, 98, 202, ___

  1. 420

  2. 410

  3. 380

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pattern: 7*2+6=20, 20*2+6=46, 46*2+6=98, 98*2+6=202, 202*2+6=410.

AI explanation

Subtract the previous term from each subsequent term to find the differences. The differences are 20 - 7 = 13, 46 - 20 = 26, 98 - 46 = 52, and 202 - 98 = 104, showing that each difference is exactly double the previous difference. Doubling 104 gives 208, and adding 208 to 202 gives 410.

Keep practicing — related questions