G9Math Q7001.1.Mix

7.If P=[2,7) and Q=(3,7], then P∩Q =………..
A.(3,7] B.(2,7] C.(3,7) D.[2,7] E.(4,7)
8.Let S=R if A={x\x<a},B={x\x>a} then (A∪B)´ is
A.∅ B.{a} C. {0} D.R{a} E.R

1. If P={x\x3+x2-6x=0 and x≥0} then P=…………
   A.{2,0,-3} B.{2} C.{2,0} D.{-2} E.{2,-3}
   10.The graph of the solution set of the inequation 5-x≥1 is
   A. B. C. D. E.
   4 4 -4 -4 -4
   11.If A={a,b,c} , B={b,c,d} and C= {a,b,e} then A∩(B∪C)=……
   A. {a,d,e} B.{a,d} C.{a,c,d} D.{a,b,d} E.{a,b,c}

2. If x∈ (P∩Q), which of the following is (are) true?
   1.x∈P 2. x∈ 3. x∈(P∪ Q)
   A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3

3. A={x\x is an integer,1<x<12} and
   B={x\x is a positive integer and less than 15 and x is multiple of3}then A∩B is
   A.{3,6,9,12} B{2,3,4,5,6,7,8,9,10,11} C.{6,9,12} D.{3,6,9,12,15} E.{3,6,9}
   14.If A≠B, which of the following is true?
   A. A∩B=B∩A B.A∪B=B∪A C.A∪A=A D.B∩B=B
   E.A\B=B\A
   15.If S={1,2,3,4,5,6,7} is the universal set ,P={1,2,3,4} and Q´={1,2,7}, then P∩Q=…..
   A. {1,2,3} B.{3,4} C.{3} D.{4} E.∅
   . A bag contain 12 white balls , some red balls and some blue balls. The probability of
   drawing a red ball is 12 and the probability of drawing a blue ball is 13 . The total number
   of balls in the bag is
   A. 22 B.60 C. 72 D.84 E. impossible to determine from the given information

4. A bag contains x red balls and 2 blues. A ball is chosen at random, given that the
   probability that it will be red is 23 , then x=………
   A.1 B.2 C.3 D.4 E.5

5. The probability of an event A is 3-4x . Then x cannot be
   A. 12 B.14 C.34 D.58 E.35

6. Which of the following numbers cannot be probability value?
   A. 0 B. 1 C. 0.99 D.9.9 E.15

7. If any number is chosen at random from the whole number 1 to 50 inclusive , the probability
   of getting a multiple of 3 is
   A.448 B.1648 C.450 D.1650 E.1250

8. The probability that a number chosen at random from the numbers 6,8,8,12,12,8,14 will be
   the mode of these number is
   A.14 B. 38 C. 13 D. 18 E.23

9. A bag contains 12 marbles, six are red, four are blue and two are white. If one marble is
   drawn from the bag, then the probability that is neither white nor blue is
   A.16 B.118 C.0.5 D.2 E.1

10. A and B are two sets such that n(A) = 10, n(B)= 25 and n(A∪B) =30, where n(P) is the
    number of elements in the set P. If an element is chosen at random from the set A∪B, the
    Probability that will not be an element of B\A is
    A.18 B.13 C.23 D.56 E. None of these

11. A bag contains 12 white balls and some red balls. The probability of drawing a red ball is 511.
    The number of red balls is
    A.10 B.12 C.22 D.5 E. None of these

12. A letter is chosen from the letters of the word “ MATHEMATICS”. The probability that it
    will be a vowel is
    A.49 B.411 C.59 D.511 E.711
    …………………………………………………………………………………………………….
    Thank you!