How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

+2 votes
66 views
asked Dec 29, 2016 in Mathematics by Rohit Singh (61,782 points) 35 133 356

How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

1 Answer

+3 votes
answered Dec 29, 2016 by vikash (21,277 points) 4 19 70
selected Dec 29, 2016 by Rohit Singh
 
Best answer

Solution here:

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon
~~~*****~~~

...