There are 30 people in a group. If all shake hands with one another , how many h
There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
In how many different ways can six players be arranged in a line such that two o
In how many different ways can six players be arranged in a line such that two of them, Asim and Raheem are never together?
In how many different ways can the letters of the word ‘OPTICAL’ be arranged
In how many different ways can the letters of the word ‘OPTICAL’ be arranged so that the vowels always come together?
Groups each containing 3 boys are to be formed out of 5 boys. A, B, C, D and E s
Groups each containing 3 boys are to be formed out of 5 boys. A, B, C, D and E such that no group can…
In how many different ways can the letters of the word ‘MATHEMATICS’ be arra
In how many different ways can the letters of the word ‘MATHEMATICS’ be arranged so that the vowels always come together?
A question paper had 10 questions. Each question could only be answered as true(
A question paper had 10 questions. Each question could only be answered as true(T) of False(F). Each candidate answered all the questions, Yet no…
How many 4-letter words with or without meaning, can be formed out of the letter
How many 4-letter words with or without meaning, can be formed out of the letters of the word, ‘LOGARITHMS’, if repetition of letters is…
Six points are marked on a straight line and five points are marked on another l
Six points are marked on a straight line and five points are marked on another line which is parallel to the first line. How…
In how many ways can a group of 5 men and 2 women be made out of a total of 7 me
In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3…
A group of 10 representatives is to be selected out of 12 seniors and 10 juniors
A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group…
In how many different ways can four books A, B, C and D be arranged one above an
In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that…
A group of 10 representatives is to be selected out of 12 seniors and 10 juniors
A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group…