# 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 ways the letters of the word WINTER can be arranged?

• Q2.How many ways can be the letters P, Q, R, S and T arranged so that P and T are always together?

• Q3.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?

• Q4.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?

• Q5.In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together?