Multiple choice

Find the missing term in the given series. $1159, 990, 846, 725, ?, 544$

  1. 600

  2. 625

  3. 650

  4. 550

  5. 680
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This series is based on squares: Each term is a square minus a specific number. 34^2=1156, 1156+3=1159. 31^2=961, 961+29=990. 29^2=841, 841+5=846. 27^2=729, 729-4=725. The pattern gives us 25^2=625, 625+0=625. Then 23^2=529, 529+15=544. The missing term is 625.

Keep practicing — related questions