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no. of ways of selecting p & q from {1,2,3,4,.....,9,10} so that |p-q|<4.

no. of ways of selecting p & q from {1,2,3,4,.....,9,10} so that |p-q|<4.

Grade:12th Pass

1 Answers

FITJEE
43 Points
8 years ago

using permutation and combination

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