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प्रश्न
A four-digit number aabb is divisible by 55. Then possible value(s) of b is/are ______.
विकल्प
0 and 2
2 and 5
0 and 5
7
उत्तर
A four-digit number aabb is divisible by 55. Then possible value(s) of b is/are 0 and 5.
Explanation:
It is given that, aabb is divisible by 55. Then, it is also divisible by 5.
Now, if a number is divisible by 5, then its unit digit is either 0 or 5.
Hence, the possible values of b are 0 and 5.
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