How many different words can be formed using all the letters of the word ALLAHABAD ? (a) When vowels ...
View QuestionHow many Permutations of the letters of the word APPLE are there?
a) 600 b) 120 c) 240 d) 60 Answer: d Explanation: APPLE = 5 letters. But ...
View QuestionIn how many ways can 8 Indians and, 4 American and 4 Englishmen can be seated in a row so that all person of the same nationality sit together?
a) 3! 4! 8! 4! b) 3! 8! c) 4! 4! d) 8! 4! 4!
View QuestionWhen six fair coins are tossed simultaneously, in how many of the outcomes will at most three of the coins turn up as heads?
a) 25 b) 41 c) 22 d) 42 Answer: d Explanation: The question requires you ...
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What is the value of 1 × 1! + 2 × 2! + 3 × 3! + . . . . . . . . n × n!
where n! means n factorial or n(n-1) (n-2) . . . . . . . . 1
What is the value of 1 × 1! + 2 × 2! + 3 × 3! + . ...
View QuestionIn how many ways can 5 different toys be packed in 3 identical boxes such that no box is empty, if any of the boxes may hold all of the toys ?
a) 20 b) 30 c) 25 d) 600 Answer: c Explanation: The toys are different; ...
View QuestionIf the letters of the word CHASM are rearranged to form 5 letter words such that none of the word repeat and the results arranged in ascending order as in a dictionary what is the rank of the word CHASM?
a) 24 b) 31 c) 32 d) 30 Answer: c Explanation: The 5 ...
View QuestionA family consist of a grandfather, 5 sons and daughter and 8 grandchildren. They are to be seated in a row for dinner. The grandchildren wish to occupy the 4 seats at each end and the grandfather refuses to have a grandchild on either side of him. The number of ways in which the family can be made to sit is:
a) 21530 b) 8! × 360 c) 8! × 480 d) 8! × 240 Answer: c ...
View QuestionHow many diagonals can be drawn in a pentagon?
a) 5 b) 10 c) 8 d) 7 Answer: a Explanation: A pentagon has 5 ...
View QuestionAfter every get-together every person present shakes the hand of every other person. If there were 105 handshakes in all, how many persons were present in the party?
a) 16 b) 15 c) 13 d) 14 Answer: b Explanation: Let total number of ...
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