हल-क्षेत्र \(x\geq 1\), \(y\geq 1\), \(x+y\leq 5\) में पूर्णांक निर्देशांक वाले कितने बिंदु हैं?
How many points with integer coordinates are in the region \(x\geq 1\), \(y\geq 1\), and \(x+y\leq 5\)?
Explanation opens after your attempt
A. (10)
Concept
For (x=1,2,3,4), the possible counts are (4,3,2,1). Hence the total is (10) points.
Why this answer is correct
The correct answer is A. (10). For (x=1,2,3,4), the possible counts are (4,3,2,1). Hence the total is (10) points.
Exam Tip
(x=1,2,3,4) के लिए क्रमशः (4,3,2,1) मान मिलते हैं। इसलिए कुल (10) बिंदु हैं।
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