Multiple choice

Find the wrong number in the given series 125 216 49 512 81 1000

  1. 49

  2. 81

  3. 125

  4. 510

  5. 1000
Reveal answer Fill a bubble to check yourself
C Correct answer
AI explanation

The series presents a pattern of perfect cubes and squares in descending and ascending order. Following the sequence of cubes and squares, the numbers should be 125, 216, 343, 512, 25, and 1000. The number 49 is a perfect square rather than the required perfect cube 343, making it the wrong term in the sequence. The correct number should be 343, so the result is 49.

Keep practicing — related questions