Each of the digits in the number 19758436 is arranged in descending order from left to right.
Each of the digits in the number 19758436 is arranged in descending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?
संख्या 19758436 के प्रत्येक अंक को बाएँ से दाएँ अवरोही क्रम (descending order) में व्यवस्थित किया जाता है। मूल संख्या की तुलना में कितने अंकों की स्थिति अपरिवर्तित रहेगी?
Detailed Solution & Logic
Correct Answer:
Three/ तीन
Original number: 19758436
Descending order of its digits: 98765431
Now compare positions:
| Position | Original | Sorted | Same? |
|---|---|---|---|
| 1 | 1 | 9 | ❌ |
| 2 | 9 | 8 | ❌ |
| 3 | 7 | 7 | ✅ |
| 4 | 5 | 6 | ❌ |
| 5 | 8 | 5 | ❌ |
| 6 | 4 | 4 | ✅ |
| 7 | 3 | 3 | ✅ |
| 8 | 6 | 1 | ❌ |
Digits whose positions remain unchanged: 7, 4, 3 → total 3 digits
✅ Correct answer: Three / तीन
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