Question

The product of successor and predecessor of 999 is ______.

Options

• 999000

• 998000

• 989000

• 1998

Answer 1

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