Multiple choice

In question Nos. 11 to 15, choose the correct alternative from the given ones that will complete the series. $2, 7, 17, 32, 52, 77, ?$

  1. $107$
  2. $91$
  3. $101$
  4. $92$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The series increases by a growing amount: 2→7 (+5), 7→17 (+10), 17→32 (+15), 32→52 (+20), 52→77 (+25). The addition increases by 5 each time (5,10,15,20,25). The next addition should be +30, so 77 + 30 = 107. Option A (107) correctly completes this addition series.

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