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The number of integers x,y,z,w such that x+y+z+w=20and x,y,z,w>= -1

The number of integers x,y,z,w such that x+y+z+w=20and x,y,z,w>= -1

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1 Answers

Arun
25750 Points
5 years ago
Dear Pradeep
 
total no of ways
 
 = 2 0 -1 C 3
 
 = 19C 3
 
Hope it helps
 
Regards
Arun (askIITians forum expert

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