Answers

2016-03-22T22:34:18+05:30
The total number of letters in the word is 11. Hence n=11.
Letters to be taken is r=4
By permutation
nPr=11P4
=11!/(11-4)!
By simplifying you will get 7920.
Therefore, the total number of words that can be formed is 7920.
0
2016-03-24T06:17:53+05:30
MATHEMATICS = 11 words 11C4 = 330 ways
1 5 1