Permutation & Combination

Are you preparing for campus placements,Banking,SSC, IAS, Insurance,Defence and other competitive exams? Then, make sure to take some time in practicing the Permutation & Combination questions and answer in Quantitative Aptitude. Moreover, only those questions are included that are relevant and likely to be asked in any competitive exam. So, take these questions and answer, brush up your skills and practice to stay fully prepared for any your exam.

  • Q1.In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position?

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  • Q2.In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given above such that they do not lie along the same straight line?

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  • Q3.In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together?

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  • Q4.In how many different ways can the letters of the word' ABSORB' be arranged?

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  • Q5.In how many different ways can the letters of the word 'BANKING' be arranged?

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  • Q6.The sum of all values of r in 18 C r2 + 2 · 18 C r1 + 18 C r ³ 20 C 13 must be

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  • Q7.When simplified, the expression 37 C 4 + p=1 5    42p C 3 equals

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  • Q8.The number of different ways the letters of the word MONICA can be Placed in the 8 boxes of the given below such that no row empty is equal to

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  • Q9.There is one male and one female candidate in an election held in a society having 10 men and 8 women eligible for voting. If 8 men are bribed to vote for the male candidate, in how many ways the male candidate can win?

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  • Q10.There are two urns having 10 red balls and 5 green balls respectively. If a total of 7 balls are to be drawn choosing at least 3 red balls and 2 green, find the total number of ways in which balls can be drawn.

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