Look at the pattern:

5, 10, 20, 40, _____ .

What comes next?

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• A 50
• B 60
• C 70
• D 80

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Show answer and explanation

Answer: D. 80

Explanation: The pattern is multiplying by 2 each time.
5 × 2 = 10
10 × 2 = 20
20 × 2 = 40
40 × 2 = 80

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