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In the series given below, how many pairs of successive numbers have a difference of 2 each?
5 1 4 6 3 9 7 2 6 4 3 1 5 6 8 2 3 5 1 7

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UP Police SI (दरोगा) Official PYP (Held On: 14 Nov 2021 Shift 2)
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  1. four
  2. six
  3. five
  4. three

Answer (Detailed Solution Below)

Option 2 : six
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Detailed Solution

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Given Series: 5 1 4 6 3 9 7 2 6 4 3 1 5 6 8 2 3 5 1 7

According to the question, such pairs of successive numbers have a difference of 2 each:

5 1 4 6 3 9 7 2 6 4 3 1 5 6 8 2 3 5 1 7

Pairs:

6 - 4 = 2

9 - 7 = 2

6 - 4 = 2

3 - 1 = 2

8 - 6 = 2

3 - 5 = 2

So, total pairs are = 6

Hence, "Option 2" is the correct answer.

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