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Question
The product of successor and predecessor of 999 is ______.
Options
999000
998000
989000
1998
Solution
The product of successor and predecessor of 999 is 998000.
Explanation:
We know that, the successor of a whole number is the number obtained by adding 1 to it and the predecessor of a whole number is one less than the given number.
So, the successor of 999 = 999 + 1 = 1000
And the predecessor of 999 = 999 – 1 = 998
Product of successor and predecessor of 999 = 1000 × 998 = 998000
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