Question
In a party 19 persons shake hands with every other
person. Find the total no of handshakes in the party? Â Â Â ÂSolution
As two persons are involved in one handshake, total number of handshakes in the party =Â 19C2 Â =Â `(19xx18)/2` Â =Â 171
History books are always together and also Geography books are always together?
Find the number of words that can be formed by using all letters of the word ' PAINTING', if it starts with letter A and end with letter T.
Find the quantity of arrangements of the letters of the word INDEPENDENCE if all the vowels always occur together?
In how many different ways can the letters of the word QUANTITY be arranged so that the vowels always come together?
There are 20 Bikes in the No-Parking zone. On a Particular day, A policeman planned to fine the four bikes of the No-Parking Zone. In how many ways can ...
Find total number of ways in which the word “ASSESSMENT” can be arranged.
A group consists of 6 boys and 8 girls. In how many ways can 2 boys and 3 girls be selected from the group?
Geography books are never together.
How many straight lines can be formed from 9 points out of which 4 are colinear?
In how many ways can 6 boys and 3 girls can be seated in a row so that they are in alternate position.
