The number of different words which can be formed by taking 4 letters at a time from the word EXPRESSION?

Asked by Last Modified  

8 Answers

Follow 0
Answer

Please enter your answer

I'm a 3rd year student of Electronics & telecommunication engineering From Indira college of engineering & management.

Press, Nose
Comments

Aptitude for Placement, Bank, B. Tech Subjects, M. Tech subjects and Projects (ECE, CSE, IT, EEE), Net for ELectronics

fact11/
Comments

Trainer

8p4
Comments

CBSE Maths for Science stream

There are 10 letters of which there are 2 E, 2 S and 6 single letters XPRION. We can form 4 letters in following ways. 1. Words formed by two double letters i.e. EESS. This will give 4! / (2! 2!) = 6 words 2. Words formed by EE followed by two letters out of SXPRION - 7C2 combinations No. of...
read more
There are 10 letters of which there are 2 E, 2 S and 6 single letters XPRION. We can form 4 letters in following ways. 1. Words formed by two double letters i.e. EESS. This will give 4! / (2! 2!) = 6 words 2. Words formed by EE followed by two letters out of SXPRION - 7C2 combinations No. of words = 7C2 x (4! / 2!) = 21 x 12 = 252 3. Words formed by SS followed by two letters out of EXPRION - 7C2 combinations No. of words = 7C2 x (4! / 2!) = 21 x 12 = 252 4. Words formed by 4 out of 8 single letters i.e. ESXPRION No of words = 8P4 = 8 x 7 x 6 x 5 = 1680 words Total no. of words = 6 + 252 + 252 + 1680 = 2190 read less
Comments

SENIOR FACULTY ACADEMIC DIRECTOR PG

2190
Comments

Home Tutor

sir it should be 10 P 4 /2! 2! =1260
Comments

Physics player

6180
Comments

Physics player

sorry ans is 1680 8*7*6*5 if repetition not allowed
Comments

View 6 more Answers

Related Questions

Explain the term "Training". Why is training needed in an organisation? Give any three reasons.
Training is requires knowledge that must be given to fresher and experienced person or employees in order to further increase their skill and efficiency so that they can work more skillful manner.
Profile Photo
Hardik
0 0
View Comments6
Asked this before but can't find the link to it. So how many teachers employ caning as a punishment method? I have read both pros and cons to it. Curious about your take on it.
Still many teaches do. But I am against it. It instills fears in mind of students rather than disciplining them.
Profile Photo
Nithin
What are the differences between polymers and macromolecules?
What is the difference between Polymers and Macromolecule? • Macromolecules and polymers are both giant molecules. Some macromolecules are polymers, but not all; some of them cannot be divided into...
Profile Photo
Shreya
0 0
View Comments8

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

PRACTISE makes you PERFECT ; ; ; There is no SUBSTITUTE for HARD WORK ;;;;Breathe SUCCESS like OXYGEN
Proper Planning ( reg what portions to be covered today) revising today's class portions & clarifying doubts solving Maths problems regularly ,noting down formulae separately trying to understand...
Profile Photo

For IIT / NEET Aspirants: The Acid Dissociation Constant Pka
The acid dissociation constant Ka is a quantitative measure of the strength of an acid in the solution. Pka: A larger Ka value means a stronger tendency to dissociate a proton, and thus, it means the...
Profile Photo

ACCOUNTING RULES
Accounting Rules Personal Dr. The Receiver Cr. The Giver Real Dr. What Comes in Cr. What Goes out Nominal Dr. Expenses and...
Profile Photo

GST News, Notifications And Announcements
Central Tax Notifications: Composition Scheme- Notification 3 & 8/2017: Composition scheme threshold has been notified to be 75 lakhs (earlier recommended only). This will be beneficial to small...
Profile Photo

Get smarter in physics
Hi all, As we all know Physics is a conceptual subject and if you do the plane reading you will learn nothing.Its subject which can be related with numerics, practicals and relation with the happening...
Profile Photo

Recommended Articles

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you