Interview Q&A / Aptitude
Aptitude interview questions
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- In how many ways can the letters of LEADER be arranged so that the vowels always come together?
72. Treat the vowels E, A, E as one block. The block plus L, D, R makes 4 units, arranged in 4! = 24 ways. Inside the block, E, A, E arrange in 3!/2! = 3 ways. Total 24 x 3 = 72.
IntermediateQuick answer1 min read