The logic here is
14 x 1.5 = 21
19 x 1.5 = 28.5
17 x 1.5 = 25.5
36 x 1.5 = 54
In all number pairs except 36 - 46, product of first number and 1.5 is equal to the second number.
$$\therefore\ $$36 - 46 is the odd number pair among the given number pairs.
Hence, the correct answer is Option D
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