Question

Look at this series: 80, 10, 70, 15, 60, ........ What number should come next?

• A. 20
• B. 25
• C. 30
• D. 50

Hint:

When solving number series, look for alternating patterns or arithmetic operations such as addition or subtraction.

Answer 1

The Correct Option is B

The pattern alternates between subtraction and addition: - 80 - 70 = 10
- 70 - 60 = 10
- 60 - 50 = 10 (following the subtraction pattern).
Thus, the next number after 60 should be 25.