Aptitude - Arithmetical Ability

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31.

How many arrangements can be mado out of the letters of the word 'ENGINEERING' ?                        
A. 277200 B. 92400
C. 69300 D. 23100



32.

In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?                        
A. 10080 B. 4989600
C. 120960 D. None of these



33.

A man has 10 friends whom he wants to invite for dinner. The number of ways in which he can invite at least one of them is:                        
A. 1024 B. 10!
C. 1023 D. None of these




34.

How many words with or without meaning, can be formed by using all the letters of the word, 'DELHI' using all the letters of the word 'DELHI' using each letter exactly once?                        
A. 10 B. 25
C. 60 D. 120



35.

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?                        
A. 40 B. 400
C. 5040 D. 2520



36.

How many words can be formed by using all the letters of the word,“ EXCELLENCE “. ?                        
A. 36800 B. 37800
C. 38800 D. 39800



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