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Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.

Q:

If 1 + 4 = 9, 2 + 8 = 18, 3 + 6 = 15 then 7 + 8 =?

  • 1
    41
  • 2
    23
  • 3
    30
  • 4
    32
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Answer : 2. "23"

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