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Permutation and combination Practice Questions & Answers

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 How many three letter words are formed using the letters of the word TIME

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 How many three letter words are formed using the letters of the word TIME

A). 12

B). 20

C). 16

D). 24

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 A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?

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 A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?

A). 21

B). 12

C). 9

D). 108

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 How many 5-digit positive integers exist the sum of whose digits are odd?

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 How many 5-digit positive integers exist the sum of whose digits are odd?

A). 36000

B). 38000

C). 45000

D). 90000

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 A selection committee is to be chosen consisting of 5 ex-technicians. Now there are 12 representatives from four zones. It has further been decided that if Mr. X is selected, Y and Z will not be selec

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 A selection committee is to be chosen consisting of 5 ex-technicians. Now there are 12 representatives from four zones. It has further been decided that if Mr. X is selected, Y and Z will not be selec

A). 572

B). 672

C). 472

D). 372

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 I have an amount of Rs 10 lakh, which I went to invest in stocks of some companies. I always invest only amounts that are multiples of Rs 1 lakh in the stock of any company. If I can choose from among

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 I have an amount of Rs 10 lakh, which I went to invest in stocks of some companies. I always invest only amounts that are multiples of Rs 1 lakh in the stock of any company. If I can choose from among

A). 252

B).

250

C). 1001

D). 1089