The number obtained by subtracting the predecessor of 320 from the successor of 1989 is

2309

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1671

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2210

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2310

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Solution

The correct option is B
1671

Predecessor is obtained by subtracting 1 from the number. So predecessor of 320 is 320 - 1 = 319
Successor is obtained by adding 1 to a number. So, successor of 1989 is 1989 + 1 = 1990
Now difference = 1990 - 319 = 1671

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