EASY
JEE Main
IMPORTANT
Earn 100

In a steamer, there are stalls for 12 animals and there are cows, horses and calves (not less than 12 each ) ready to be shipped. Find the number of ways in which shipload can be made?

Important Questions on Permutations and Combinations

EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 9
In how many ways can n things be given to p persons, when there is no restriction as to the number of things each may receive?
EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 10
In how many ways can five things be divided between two persons?
EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 11

How many different arrangements can be made out of the letters in the expression a3b2c4 when written at full length?

EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 12
A letter lock consists of three rings each marked with fifteen different letters, find in how many ways it is possible to make an unsuccessful attempt to open the lock.
EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 13
Find the number of triangles which can be formed by joining three angular points of a quindecagon.
EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 14
A library has a copy of one book, b copies of each two books, c copies of each three books and d copy of one book. In how many ways can these books be distributed, if all are out at once?
EASY
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 15
How many numbers less than 10000 can be formed, using the eight digits 1,2,3,0,4,5,6,7?
MEDIUM
JEE Main
IMPORTANT
Higher Algebra>Chapter 11 - Permutations and Combinations>EXAMPLES. XI. b.>Q 16
In how many ways can the following prizes be given away to class of 20 boys first and second classical, first and second mathematical, first science and first French?