Question 18

In the plane let the positive end of the $$π‘₯-axis$$ be directed towards East and the positive end of the $$y-axis$$ be directed towards North. Suppose you are at $$(0, 0)$$ and you want to go to $$(7, 12)$$. At every move you are allowed to move unit length towards East or unit length towards North from your current position but you are not allowed to visit any point $$(β„Ž, π‘˜)$$ where both $$β„Ž, π‘˜$$ are odd. Find the number of such paths $$𝑛$$.


Correct Answer: 84

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