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Fundamental Principle of Counting
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Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IIIrd Year UG, IITB | 115/120 in Maths in JEE Main (2016) | Qualified NSEA (Astronomy Olympiad) | YouTuber with over 1,00,000 subscribers.

Comments
(30)
Unacademy user
thanks sir...pls explain again child bone 213 ya 270.. because in slide given 213.
Chetan Mna
8 months ago
it is approx 270 Ajay *
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