[Solved] What number should come next in the series? 5, 10, 20, 40

Q.	What number should come next in the series? 5, 10, 20, 40
A.	80
B.	85
C.	90
D.	95
Answer» A. 80
Explanation: This is a series where each number is the double of the previous number. So the next number should be 40 (the last number in the series) * 2 = 80.

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