Math, asked by Anonymous, 5 months ago

Hey mates! Try this question. Today no IIT or Olympiad question. I will as tomorrow.

This question is medium level.

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Answers

Answered by Anonymous

2

Answer:

? = 7

Step-by-step explanation:

2 + 6 - 1 = 7

3 + 7 - 1 = 9

4 + 9 - 1 = 12

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