CA Foundation doubt
I don't know how...😩 Selection of 5 out of 7 (7c5) becomes 21 ??
Asked by Shivam10 Aug 2024378 views
6 answers
Shivam · 10 Aug 2024
Okkie 🙃
Gunjan · 10 Aug 2024
7×6/2 = 21
Harsh · 10 Aug 2024
7p5/5!
Varsha · 10 Aug 2024
7! / 5! . 2! =7×6 / 2×1 = 42/2 = 21
Yash · 10 Aug 2024
7c5 can be written As 7c2(apply formula ) then 7×6 ÷2 = 21
Harsh · 10 Aug 2024
Right 👍🏼
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