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The number of ways in which we can choos...

The number of ways in which we can choose 2 distinct integers from 1 to 100 such that difference between them is at most 10 is:

A

3790

B

`.^(200)C_(2)-.^(180)C_(2)`

C

`.^(180)C_(1)xx20+(19xx20)/2`

D

`.^(180)C_(2)`

Text Solution

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The correct Answer is:
a,b,c,d
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