यदि (n!=720), तो (n) का मान क्या है?
If (n!=720), what is the value of (n)?
Explanation opens after your attempt
B. (6)
Concept
(6!=720), so (n=6). Remembering small factorial values helps answer quickly.
Why this answer is correct
The correct answer is B. (6). (6!=720), so (n=6). Remembering small factorial values helps answer quickly.
Exam Tip
(6!=720), इसलिए (n=6)। छोटे क्रमगुणित मान याद रखने से उत्तर जल्दी मिलता है।
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