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2! + 3! =
Correct Answer Is : 8 In how many ways 6 letters can be posted in 5 letter boxes? Correct Answer Is : 5 ^ 6 5/i^25 Correct Answer Is : 5i A journey from place A to place B can be done by three different modes, i.e. bike, train, bus or aero plane. If a person wants to go from A to B and return, in how many ways this can be done? Correct Answer Is : 12 In how many ways 6 students can be arranged in a order Correct Answer Is : 720 What is the number of ways of choosing 8 students from 80 students? Correct Answer Is : 80C8 Find the number of words with or without meaning which can be made using all the letters of the word FALL. Correct Answer Is : 12 C(30,r) = C(30, r + 2) then What is the value of C(r,6) ? Correct Answer Is : 3003 If n=5 and r=2 then n! / (n-r)! Is equal to Correct Answer Is : 20 Value of nP^o Correct Answer Is : 1