Multiple choice

In the given series, only one number is wrong. Find the wrong number. 7.7, 8.6, 9.6, 10.7, 11.8, 13.2, 14.6

  1. 8.6

  2. 9.6

  3. 10.7

  4. 11.8

  5. 14.6
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The series follows an increasing difference pattern: 7.7 + 0.9 = 8.6, 8.6 + 1.0 = 9.6, 9.6 + 1.1 = 10.7, 10.7 + 1.2 = 11.9. The term 11.8 is incorrect as it should be 11.9.

AI explanation

The series follows an increasing difference pattern of 0.9, 1.0, 1.1, 1.2, 1.4, and 1.4. Adding 1.2 to 10.7 gives 11.9, so the term 11.8 is wrong. The pattern then resumes correctly with 11.9 plus 1.3 equaling the next term of 13.2.

Keep practicing — related questions