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Number Puzzle #168 – If 1 + 2 = 13 Then

(8 votes, average: 4.38 out of 5)

February 6, 2017 by puzzler 7 Comments

Number Puzzle #168

If 1 + 2 = 13

2 + 3 = 61

3 + 4 = 193

Then 4 +5 = ?

Check your answer:-

Tried enough already?
Answer With Explanation
Answer: 481
Explanation:

A+B = (A*B + 2)^2 – 3

Answered by: Nelson DSouza in disqus comments.

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Comments

  1. Nelson DSouza says

    February 6, 2017 at 4:58 pm

    explanation

    Reply
    • Prabu Sekkaaran says

      February 6, 2017 at 5:12 pm

      super sir.. nice explanation

      Reply
  2. pega exchange says

    February 6, 2017 at 3:01 pm

    481
    First Line(1+2=13)
    1*2+2=4
    4^2(i.e 4*4)=16
    16-3=13.
    Second Line(2+3=61)
    2*3+2=8
    8^2(8*8)=64
    64-3=61
    Similarly the rest follows.

    Reply
  3. Ashwani says

    February 6, 2017 at 2:12 pm

    241

    Reply
    • Prabu Sekkaaran says

      February 6, 2017 at 2:26 pm

      How? can you explain?

      Reply
      • Ashwani says

        February 6, 2017 at 3:19 pm

        Just add 2nd and 3rd, and then subtract 1st, u’ll get the answer

        Reply
        • Prabu Sekkaaran says

          February 6, 2017 at 5:10 pm

          why? what is the logic is this

          Reply

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