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Multiple choice

What is the 5th term in the sequence 1, 1.2, 5.4, 13.6,...?

  1. 25.8

  2. 30.8

  3. 31.8

  4. 32.8

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sequence is 1, 1.2, 5.4, 13.6. Differences: 0.2, 4.2, 8.2. The differences increase by 4.0. Next difference = 8.2 + 4.0 = 12.2. Next term = 13.6 + 12.2 = 25.8.

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