Sarthaks Test
0 votes
197 views
in Mathematics by (70.5k points)

How many words can be formed by taking four different letters of the word MATHEMATICS ?

(a) 756 

(b) 1680 

(c) 2454 

(d) 18

1 Answer

+1 vote
by (75.6k points)
selected by
 
Best answer

Correct option: (c) 2454

Explanation:

M-2 times

T-2 times

a-2 times, H, E, I, C, S

The words with two letters are alike

words with two letters alike and 2 distinct 

words with all letters distinct 

So, Total words = 2454

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.

Categories

...