Multiple choice

Directions: Complete the following series.

2, 5, 17, 71, 359, ?

  1. 2159

  2. 362

  3. 2154

  4. 371

  5. 2160
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A Correct answer
Explanation

It is clear from the given series that every term is following the pattern * 2 + 1, * 3 + 2, * 4 + 3 .... to get the next term.

2 * 2 + 1 = 5 5 * 3 + 2 = 17 17 * 4 + 3 = 71 71 * 5 + 4 = 359

Similarly, 359 * 6 + 5 = 2159

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