Mathematics
The product of the predecessor and the successor of the greatest 2-digit number is
9900
9800
9700
none of these
Whole Numbers
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Answer
The greatest 2-digit number = 99.
Predecessor of 99 = 99 - 1 = 98.
Successor of 99 = 99 + 1 = 100.
Product of predecessor and successor = 98 × 100 = 9800.
Hence, option 2 is the correct option.
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