The product of successor and predecessor of 999 is (A) 999000 (B) 998000 (C) 989000 (D) 1998
The product of successor and predecessor of 999 is
(A) 999000 (B) 998000 (C) 989000 (D) 1998
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(B) 998000
The number which comes immediately before a particular number is called its predecessor.
The successor of a whole number is the number obtained by adding 1 to it.
So, Successor of 999 = 999 + 1 = 1000
Predecessor = 999 – 1 = 998
Then, product of successor and predecessor of 999 is = 1000 × 998
= 998000
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