0 reads0 ratings0 helpful
From the numbers (1) to (15), (4) numbers are chosen so that their product is odd. How many selections are possible?(1) से (15) तक की संख्याओं में से (4) संख्याएँ चुननी हैं ताकि उनका गुणनफल विषम हो। कुल चयन कितने हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (70)(70)
The product is odd only when all four numbers are odd, so ( \binom{8}{4}=70 ). For product parity, check every factor.गुणनफल विषम तभी होगा जब चारों संख्याएँ विषम हों, इसलिए ( \binom{8}{4}=70 )। गुणनफल की सम-विषम प्रकृति में सभी कारकों पर ध्यान दें।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
