In how many ways can 21 books on english
Asked by admin @ in Math viewed by 368 People
in how many ways can 21 books an English and 19 books on Hindi...be placed in a row on a shelf so that 2 books on Hindi may not be together?
Answered by admin @
there are 20 places between 21 english book and 2 places (first and last)
totally 22 places for 19 hindi books
so we select 19places from 22 places for hindi books
so number of ways =22C19
=22C3=22(21)(20)/1(2)(3)
=11(7)(20)=1540
Similar Questions
How many cans of paint are needed to cover an area of 2200 square units if one can of paint covers in area 400 square units
Asked by maham237 @ in Mathematics viewed by 614 persons
How many ways can you get change for a dollar
Asked by admin @ in Mathematics viewed by 315 persons
How many ways can you make change for a dollar using nickels, dimes, and or quarters
How many pages are in the book prisoner b 3087
Asked by admin @ in English viewed by 290 persons
Summarize the pages 62 and 122 in the book Prisoner B-3087
How many books are there in a trilogy
Asked by admin @ in Social Sciences viewed by 378 persons
How many books are there in trilogy
How many vowels are there in english alphabet
Asked by admin @ in English viewed by 333 persons
Ques
1. What is a vowel ? How many vowels are there in English ?Name them.2. What is a semi-vowel ? How many are they in all ? …
How many consonants are there in english alphabet
Asked by admin @ in English viewed by 298 persons
How many consonants are there in English alphabet?
A book of articles on many subjects arranged alphabetically
Asked by admin @ in Social Sciences viewed by 301 persons
What is encyclopaedia?
In how many ways 5 boys and 3 girls
Asked by admin @ in Math viewed by 302 persons
In how many ways can 5girls and 3 boys be seated in a row so that no two boys are together
How many ways can a batsman lose his wickets
Asked by admin @ in Geography viewed by 294 persons
How many can ways a batsman lose his wicket
A man has 6 friends in how many ways
Asked by admin @ in Math viewed by 340 persons
A man has 6 friends.In how many ways can he invite one or more of them to a tea party?
How many parts of speech are there in english
Asked by admin @ in English viewed by 334 persons
How many Parts Of Speech are there in English grammar?
How many consonants are there in the english alphabet
Asked by admin @ in English viewed by 324 persons
How many consonants are there in English alphabet?
In how many ways can a cricket eleven be chosen
Asked by admin @ in Math viewed by 406 persons
In how many ways can a cricket team of eleven be chosen out of a batch of 15 players if a particular player is always chosen?
Alternative english class 11 chinar the many and the none
Asked by admin @ in English viewed by 770 persons
Class 11 all questions and answers Chinar
Application to principal for new books in library in english
Asked by admin @ in English viewed by 337 persons
Write an application to the principal of your school to make a book available in the school library
Most viewed questions in Math
Prachi excellence in mathematics class 7 solutions pdf free download
Asked by admin @ in Math viewed by 11993 persons
Survey of various types of bank accounts icse project
Asked by admin @ in Math viewed by 11496 persons
Oxford new enjoying mathematics class 7 solutions chapter 1
Asked by admin @ in Math viewed by 11491 persons
Rahul went to his mother's mother in law
Asked by admin @ in Math viewed by 4170 persons