Yes, because when you add a number, (odd+even) it always turns out odd. For example, 15+4=19 or 10+3=13
Jacob says that an even number plus an odd number equals an odd number - yes, I agree.
Numbers can be divide by their divisibility by 2 in two groups even numbers and odd numbers.
=> 2 (even) + 3 (odd) = 5 (odd)
=> 7 (odd) + 4 (even) = 11 (odd)
Thus, the statement of Jacob is true.
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