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[ROHAN1230]

Ways to solve কলম নিবা

Firstly, we will consider the four persons named in the problem.Let’s start finding the ways- (the colors are written with the first letter) Rafin. Rahul. Jaber. Jubair. TOTAL WAYS g. g. g. b. → 9!/(6!2!) g. g. b. g. → " g. g. g. r. → 9!/5!3! g. g. r. g. → " g. g. b. r. → …

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