Elitmus Exam Category

How many 3-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?

Options
1) 720
2) 420
3) 5040
4) None of these

Read Solution (Total 2)

10c3*3!
10c3 for selecting 3 characters nd 3 factorial for arranging them
8 years agoHelpfull: Yes(2) No(1)

ans:1) 720
sol : (10)*9*8
720
8 years agoHelpfull: Yes(2) No(0)

Elitmus Other Question

The average of 20 numbers is zero. Of them, How many of them may be greater than zero , at the most?

Options
1) 1
2) 20
3) 0
4) 19 When the result of elitmus 23rd feb 2015 Nagpur pH test will be out .. ?? It has already been 14 days ..