When a number is rounded to the nearest 100, it is 0. When the same number is rounded to the nearest 10, it is 50.

what could the number be?​

49

Step-by-step explanation:

This is because 49 is below 50 but above 40. The number must also round to 0 from the nearest 100, so any value 50 and above will round to 100 and any value 49 and below will round to 0. So we are left with the values 40-49 because any value below 40 is rounded to either 40,30,20,10 or 0. Since any value below 45 won't round to 50, any value between 45 and 49 will work.

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