Mathematics · Probability
अंक 1 से 9 तक में से दो भिन्न अंक यादृच्छिक रूप से चुने जाते हैं। यदि उनका योग सम (even) है, तो दोनों चुने गए अंकों के विषम (odd) होने की प्रायिकता क्या है?
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सही उत्तर देखें
58
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