Multiple choice

What will come in place of question mark?

1, 4, 12, 15, 45, 48, ?

  1. 144

  2. 51

  3. 192

  4. 56

  5. 78
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A Correct answer
Explanation

As it is clear from the series, every term is either added to 3 or multiplied by 3 to get the next term.

1 + 3 =4 4 * 3 = 12 12 + 3 = 15 15 * 3 = 45 45 + 3 = 48 Similarly, 48 * 3 = 144

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