30, 25, 30, 15, 45, 50, 30, 10, 30, 35, 30, 10, 50, 20, 55, 25, 55, 35, 35, 40, 10, 40, 20, 55, 55, 50, 30, 35, 15, 40, 30, 45, 15, 55, 50, 42, 55, 35, 55, 35, 25, 45, 30, 40, 35, 50, 10, 50, 55, 30.
Which number is the odd one out? Write down as many reasons as you can think of explaining why that number is the odd one out.
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