Question # 1

When a selection of object is made without paying regard to the order of selection, it is called

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Sequence

Series

Combination

Permutation

The probability to get an odd number in a dice thrown once is

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1/2

1/6

1/3

2

Riaz, Saba. Maria, Shehzad are to give speeches in a class. The teacher can arrange the order of their presentation in

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4 ways

12 ways

256 ways

24 ways

A key ring is an example of

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Permutation

Circular permutation

Combination

None

A committee consists of 9 experts taken from three institutions A, B, and C, of which 2 are from, A, 3 form B and 4 from C. If three experts resign, then the probability that they belong to different institutions is

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1 / 729

1 / 24

1 / 21

2 / 7

A class contains nine boys and three girls, in how many ways can the teacher choose a committee of four?

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460

495

272

60

The probability that the sum of dots appearing in two successive thrown of two dice, in every time 7 is

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1/5

1/36

1/7

1/63

A bag contains 5 white, 7 red and 5 black balls. If four balls are drawn one by one with replacement, the probability that none is white is

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(11/16)²

(5/16)²

(11/16)⁴

(5/16)⁴

All letters of the word "AGAIN" are permuted in all possible ways and the words so formed (with or without meaning) are written as in dictionary, then the 50th word is