0

Guest

Courses New

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

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
 

Grade:12

1 Answers

Vishal Mehta
35 Points
7 years ago
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!

Think You Can Provide A Better Answer ?

Other Related Questions on Magical Mathematics[Interesting Approach]

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More