समीकरण (x+y+z=15) के अऋण पूर्णांक हल कितने हैं?
How many non-negative integer solutions does (x+y+z=15) have?
Explanation opens after your attempt
A. (136)
Concept
By the stars and bars method, the count is \(^{15+3-1}C_{3-1}=^{17}C_{2}\). Its value is (136).
Why this answer is correct
The correct answer is A. (136). By the stars and bars method, the count is \(^{15+3-1}C_{3-1}=^{17}C_{2}\). Its value is (136).
Exam Tip
स्टार और बार विधि से संख्या \(^{15+3-1}C_{3-1}=^{17}C_{2}\) है। इसका मान (136) है।
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