Shambhu Kumar

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Maths lectures for class 11 12 & passout students. This initiative has been taken to provide quality education to all the students who cannot afford higher a...

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circular permutation

number of squares and rectangles

finding ORDERED and UNORDERED pair with given lcm

conditional filling of boxes

geometrical problems in permutation and combination

Number of solution with the help of MULTINOMIAL xyz=24

divisors best questions permutation and combination

sum of divisors

number of divisors

selection from identical objects

division and distribution

exponent of prime p in n factorial

mixed problems on permutation and combination

combination basics

Rank in a dictionary

gap method

string methodrestricted permutation

permutation under certain condition

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basic concept of permutation and combination

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