Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?

Given data

• Sequence: 5.2, 4.8, 4.4, 4.0, ...

Concept/Approach
Constant decrement by 0.4.

Step-by-step calculation
5.2 − 0.4 = 4.84.8 − 0.4 = 4.44.4 − 0.4 = 4.0Next = 4.0 − 0.4 = 3.6

Verification/Alternative

• All steps reduce by the same decimal amount (0.4).

Common pitfalls

• Subtracting 0.2 instead of 0.4 due to decimal oversight.

Final Answer
3.6