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Find the number of ways in which the letters of the word BIHAR can be arranged.
Find the number of ways in which the letters of the word AMERICA can be rearranged.
Find the number of ways in which the letters of the word CALCUTTA can be rearranged.
How many 4-letter different words can be formed by using the letters a, b, c and d?
How many numbers can be formed by using the digits 2, 3, 4 and 5?(repetitions of digits is not allowed).
How many numbers greater than 4000 can be formed by using the digits 2, 3, 4 and 5? (repetitions of digits is not allowed).
How many numbers greater than 4000 can be formed by using the digits 2, 3, 4 and 5?
There are 3 roads from A to B, 4 roads from B to C and only 1 road from C to D. How many combinations of roads are there from A to D?
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Un-answered - 10