Click to Chat
1800-2000-838
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
all the letters of a word krishna are used to form a seven letter word then the no of words which begin and end with a vowel are
The no. of vowels in the word are 2. They can be arranged in 2! ways. They can again be arranged in two ways in the beginning and one in the end. So we are left with 5 places which can be taken by any of the nonvowel in 5 ways. Therefore requit no. of ways = 2! × 5!. Number of given letters = 7Total no. of words can be formed = 7!So, required probability= 2!×5!/7!
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -