Question # 1

In school there are 150 students Out of these 80 students enrolled for mathematics class 50 enrolled for English class and 60 enrolled for Physics class The student enrolled for English cannot attend any other class but the students of mathematics and Physics can take two courses at a time Find the number of students who have taken both physics and mathematics.

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40

30

50

20

The sum of all positive integral multiple of 5 less than 100 is

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950

760

1230

875

An experiment yields 3 mutually exclusive and exhaustive events A, B, C, if P(A) =2 and P(B) = 3. then P(C) =

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1 / 11

2 / 11

3 / 11

6 / 11

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 bag contains 3 white, 4 black and 2 red balls. If 2 balls are drawn at random, then the probability that both the ball are white is

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1/18

1/12

1/36

None of these

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How many arrangements of the letters of the word MI SSI PPI, taken all together can be made?

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The number of the diagonals of a 6 sided figure is

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15

21

9

6

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

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6

1

1/6

1/2

The probability that a slip of number divisible by 4 is picked from the slips bearing numbers 1, 2, 3, ...10 is

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1/5

1/4

1/3

1/2

The sum of all odd numbers between 100 and 200 is

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6200

7500

6500

3750

The sample space for tossing a coin once is

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{T, T}

{H, H}

{H, T}

None of these

Product of any n consecutive positive integers is divisible by

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n

√n

n!

None

There are n seats round a table numbered 1, 2, 3 .... n. The number of ways in which m person can take seats is

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ⁿP_m

ⁿC_mx (m - 1) !

^n-1P_m

None of these

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

If 4 ⁶P_r= ⁶P_r+1, then r is equal to

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4

3

2

1

A box contains 10 red 30 white and 20 black marbles When a marble is drawn at random the probability that it is either red or white is

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1/6

1/3

1/2

2/3

How many comittees of 5 numbers can be chosen from a group of 8 players person when each committee must include 2 particular persons

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8!

5!3!

5!

20

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56

7

8

8/7

Cycle tyres are supplied in lots of 10 and there is a chance if 1 in 500 tyres to be defective. Using Poisson distribution, the approximate number of lots containing no defective tyre in a consignment of 10, 0000 lots is

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9028

9208

9802

9820

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How many arrangements of the letters of the word PAKISTAN cab be made

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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

n different objects can be arranged taken all at a time in ______

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(n + 1)! ways

(n - 1)! ways

n! ways

n ways

How many signals can be given by 5 flags of different colours, using 3 flags at a time

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120

60

24

15

The sum of all even numbers less than 100 is

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2450

2352

2272

2468

The number of 5-digit number that can be formed from the digits 1,2,4,6,8, when 2 and 8 are never together is

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72

48

144

20

If S is a sample space and event set E = S then P(E) is

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>0

1

<1

0

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3

6

0

None of these

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

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