logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  CBSE XI  >>  Math  >>  Permutations and Combinations
0 votes

How many words can be made from the letters of the word MONDAY assuming that no letter is repeated if (c) All letters are used but the first is a vowel

$\begin{array}{1 1}(A)\;240\\(B)\;320\\(C)\;350\\(D)\;175\end{array} $

Can you answer this question?
 
 

1 Answer

0 votes
Total no of vowels in the word MONDAY =2
No of ways in which first is a vowel =$2C_1$
And other letters are $5C_5=5!$
$\Rightarrow 5\times 4\times 3\times 2\times 1$
$\Rightarrow 120$
Total no of ways =$12\times 2C_1$
$\Rightarrow 120\times 2$
$\Rightarrow 240$ ways
Hence (A) is the correct answer.
answered May 19, 2014 by sreemathi.v
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...