Multiple choice general knowledge math & puzzles

0.099, 0.99, 9.9, 99, 990,_______

  1. 99

  2. 9

  3. 990

  4. 9900

  5. 99000

  6. 990000
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is a number series: 0.099, 0.99, 9.9, 99, 990, ____. Each number is 10 times the previous number (0.099 × 10 = 0.99, 0.99 × 10 = 9.9, etc.). Following this pattern, 990 × 10 = 9900, which is the correct answer (Option D).

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