Question
History books are always together and also Geography
books are always together? Directions (Q.61 -65): In how many ways 5 History books and 7 geography books can be arranged in a row so that :Solution
Reqd. no. of ways = 5! 7! 2!
Count the number of “words” from MISSISSIPPI when all the vowels occur together.
- A team of 6 players is to be selected from 7 men and 5 women. In how many ways can a team be formed such that at least 4 men are included?
How many 4-digit numbers can be formed using digits 1–9 if repetition is not allowed and the number is even?
How many straight lines can be formed from 9 points out of which 4 are colinear?
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "READING"?
How many numbers of five digits may be formed with the digits 5, 0, 9, 0, and 6?
- How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "PAINTER"?
How many distinct arrangements of DAUGHTER are there if the vowels remain together?
In how many different ways can the letters of the word “MONDAY” be arranged in such a way that the vowels always come together?
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "MISTAKE"?
Relevant for Exams:
