Saved Bookmarks
| 1. |
How Many 4 Letters Words With Or Without Meaning, Can Be Formed Out Of The Letters Of The Word, 'logarithms', If Repetition Of Letters Is Not Allowed? |
|
Answer» 'LOGARITHMS' contains 10 DIFFERENT LETTERS. Required number of words = Number of arrangements of 10 letters, TAKING 4 at a TIME. ‹=› 10p4 ‹=› (10 x 9 x 8 x 7) ‹=› 5040. 'LOGARITHMS' contains 10 different letters. Required number of words = Number of arrangements of 10 letters, taking 4 at a time. ‹=› 10p4 ‹=› (10 x 9 x 8 x 7) ‹=› 5040. |
|