How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7, 9 which are divisible by 5 and none of the digits is repeated?

Asked by Last Modified  

1 Answer

Learn Class XI-XII Tuition (PUC) +2 Mathematics Permutation and Combinations

Follow 0
Answer

Please enter your answer

Tutor

For all the numbers the last digit must be 5. So, the 1st, and the 2nd places are occupied by 2, 3, 6, 7, and 9 without any repetition. So, this can be done by taking 2 digits at a time from the above 6 digits. The number of ways this can be done is 6P2 = !6/!(6-2) = !6/!4 = (6x5x4x3x2x1)/(4x3x2x1) =...
read more
For all the numbers the last digit must be 5. So, the 1st, and the 2nd places are occupied by 2, 3, 6, 7, and 9 without any repetition. So, this can be done by taking 2 digits at a time from the above 6 digits. The number of ways this can be done is 6P2 = !6/!(6-2) = !6/!4 = (6x5x4x3x2x1)/(4x3x2x1) = 6x5 = 30. (Answer) read less
Comments
Dislike Bookmark

Related Questions

What is gametogenesis?
It is defined as the process in which cells undergo meiosis to form gametes.
Renu
0 0
5
What is meant by Capital?
In simple terms any thing bring by the owner of business to start the business activity or for investing
Arati Chaudhari
0 0
8
What is the equation of tangent and its slope form?
m= the slope of the tangent= dy/dx Tangent A: y= mx + square root( square of (am) + square of b), where m=the slope of the tangent=dy/dx or at (x1, y1), xx1/square of a + yy1/square of b=1. c = sqrt (a*a*m*m + b*b).
Chitra
0 0
8
What would be the best method to teach online?
Firstly student must have a basic idea about the subject, then on the process of teaching it would be more like an 2-way discussion rather than only the tutor explaining.
Banu P.
What is daynemo?
Dynamo is a word that used to simply mean an electric generator, but today, it refers to a generator that produces direct current (DC) using a commutator, an electrical switch that generates electricity...
Abdhesh
0 0
8

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

Ask a Question

Related Lessons

Analysis of functional groups in organic chemistry
We must know the basic reactions of various functional group. Keeping this in mind, a summery of important reactions of the alcohol functional group are summerised below . ALCOHOL ( -C-OH) Evolve...

Vivek P S

0 0
0
Electrostatic charge distribution.
Suppose there are two metallic charged bodies A and B, separated by an distance x and each having equal amount of charge, Q. Now another metallic uncharged body C is brought in contact with body A and...

Aslam Mohammed

0 0
0
Objectives of financial accounting
1. Maintenance of records of business 2. Ascertain the results of business 3. Construct the financial position of business 4. Providing accounting information to its users.

Vijayakumar V.

0 0
0
Consignment Meaning & Features
Meaning & Features Of Consignment Meaning: Consignment means the transaction of sending goods by one person (called CONSIGNOR) to another (called CONSIGNEE) who is to sell those goods on behalf of...

Fr Prashanth Reddy

Rules of Journalizing
Personal a/c : " Debit the receiver, Credit the giver." Real a/c : " Debit what comes in, Credit what goes out." Nominal a/c : " Debit all expenses & losses, Credit all incomes & gains."

Sadiya G.

0 0
0

Recommended Articles

Meet Sandhya R, a B.Sc tutor from Bangalore

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 >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

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 >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Find Grade 12 Tuition near you
Grade 12 Tuition in Delhi
Grade 12 Tuition in Bangalore
Grade 12 Tuition in Chennai
Grade 12 Tuition in Hyderabad
Grade 12 Tuition in Kolkata
Grade 12 Tuition in Mumbai
Grade 12 Tuition in Pune
Grade 12 Tuition in Lucknow
Grade 12 Tuition in Noida
Grade 12 Tuition in Gurgaon
Online Tuition Class 12

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