MEDIUM
CAT
IMPORTANT
Earn 100

The number of ways in which 9 identical balls can be placed in three identical boxes is:

50% studentsanswered this correctly

Important Questions on Permutations & Combinations

EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 14
The number of ways in which 30 coins of one rupee each be given to six persons so that none of them receives less than 4 rupees is :
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 15
The number of circles that can be drawn out of 10 points of which 7 are collinear is:
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 16
The number of natural numbers of two or more than two digits in which digits from left to right are in increasing order is:
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 17
In how many ways a cricketer can make a century with fours and sixes only?
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 18
The number of permutations of the letters of the word LUMINARY such that neither the pattern LURY nor MINA occurs is :
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 19
10 students are to be seated in two rows equally for the MOCK CAT in a room. There are two sets of papers, code A and code B. Each of the two rows can have only one set of paper but different that from the other row. In how many ways these students can be arranged?
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 20
Aman Verma and Mini Mathur jointly host a TV programme in which one particular day n guests attend their show. In that show, each guest shakes hands with every other guest and each guest shakes hands with each of the hosts. If there happens to be total 65 handshakes, find the number of guests who attend the show.
EASY
CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 19 - SNAP>CMAT>Q 21
The number of ways in which an examiner can assign 50 marks to 10 questions giving not less than 3 marks to any question is :