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A number and its successor are added together to give 4001.
What is the number?

Class 6Successor and PredecessorWhole Numbers

A1800
B2200
C4000
D2000

Step-by-Step Solution

Let the number be

n

. Then

n + (n + 1) = 4001

, so

2 n + 1 = 4001, 2 n = 4000, n = 2000

.

Answer: D) 2000

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