Find the next number in the series: 10, 50, 15, 46, 20, 42, 25, ?
Correct answer: D. 38
Two series alternate: 10, 15, 20, 25 (+5) and 50, 46, 42 (−4). The next term belongs to the second series: 42 − 4 = 38. The next term is 38.
hard
Answer and explanation
The correct answer is D. 38
Two series alternate: 10, 15, 20, 25 (+5) and 50, 46, 42 (−4). The next term belongs to the second series: 42 − 4 = 38. The next term is 38.
Topic: Number and Letter Series MCQs · Subject: Reasoning