Which number does NOT belong to the sequence?
100, 90, 80, 60, 50
Show answer & explanation
Correct answer: A
Explanation
100 → 90 = −10
90 → 80 = −10
80 → 60 = −20
60 → 50 = −10
If the sequence requires 10 occurrences each time, the series should be:
100, 90, 80, 70, 60, 50
Here, 60 should have been 70 instead of 60.
Therefore, 60 does not belong to the sequence.
Correct answer: 60