Multiple choice

Find the wrong number in the given number series: 1524, 1541, 1576, 1626, 1694, 1779

  1. 1524

  2. 1541

  3. 1576

  4. 1626

  5. 1694

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

The differences are: 1541-1524=17, 1576-1541=35, 1626-1576=50, 1694-1626=68, 1779-1694=85. The pattern of differences should be 17, 34, 51, 68, 85 (multiples of 17). 1576 is incorrect because 1541+34=1575.

AI explanation

The differences between the terms are 1541 - 1524 = 17, 1576 - 1541 = 35, and 1626 - 1576 = 50. These differences follow the pattern of squares, specifically 4 squared plus 1, 6 squared minus 1, and 7 squared plus 1. The actual differences should be 17, 33, 53, 77, and 105 based on the alternating square pattern, which makes 1576 the incorrect term.