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GLOBAL TUTORS

   Math Practicetest    

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Date & Time : October 22, 2017, 19:11

Welcome to Global tutors Practicetest area:


Instructions:

* In this Practicetest each problem has four probable answers, decide which is the best of the given choice and click on the corresponding button.

* You can change the answer if required before submitting the Practicetest.

* Be careful not to spend too much time on any one question, as you are expected to complete the Practicetest within 30 minutes.

* Please do not click on the submit button till you have finished the complete Practicetest.


1) A relation becomes a function only if _______.
       A. for every input, there are two outputs
        B. for two inputs, there is exactly one output
        C. for every input, there are fixed number of outputs
       D. for every input, there is exactly one output

2) When a die is thrown at random, the probability of getting a number greater than 2 is:
       A. 1/33
        B. 2/3
        C. 1
       D. 0

3) Write the number in scientific notation. 0.09
       A. 9נ10-2
        B. 9נ102
        C. 9נ103
       D. 9נ10-3

4) Find the inverse of the function f(x)=(2x2-1)/2
       A. √(2y+1)/2
        B. √(y+1)/4
        C. √(2+y)/2
       D. √(2y-1)/2

5) The graph of the inequation x+2y+3 < 0 represents a half plane divided by the line
       A. 2x+2y+3 =0
        B. x+2y-3 =0
        C. x+2y+3 =0
       D. x-2y+3 =0

6) Find the volume of a cylinder if radius is 5 inches and height is 11inches ?
       A. 863.5 in3
        B. 864.5in3
        C. 866.5in3
       D. 867.5in3

7) Find the inverse of the function f(x) = (x+5)/x
       A. x-2
        B. 5/(x-1)
        C. x+3
       D. 5/(x+1)

8) The number of books issued in a library for 11 days are 42, 34, 42, 23, 24, 23, 47, 43, 39, 42, and 42. How many stems are there in the data?
       A. 2
        B. 4
        C. 3
       D. 5

9) Find the value of 2430*243?
       A. 0
        B. 1
        C. 143
       D. 243

10) PQR is a triangle right angled at P. If PQ = 10 cm and PR = 24 cm, find QR.
       A. 22
        B. 26
        C. 23
       D. 25

11) A book containing 200 pages is opened at random. The probability that a doublet page is found is _______.
       A. 90/200
        B. 20/200
        C. 10/200
       D. 9/200

12) Find the slope (m) and y-intercept (b) of the graph of the equation y = - 3x + 7.
       A. m = - 3, b = 7
        B. m = - 3, b = - 7
        C. m = 3, b = 7
       D. m = 3, b = - 7

13) The scores of students in a math test are 24, 6, 7, 9, 11, 13, 15, 19, 22, 13 and 10. What is the middle quartile of the data?
       A. 11
        B. 24
        C. 6
       D. 13

14) A and B toss 3 coins. The probability that both obtain the same number of heads is:
       A. 1/9
        B. 3/16
        C. 5/16
       D. 3/8

15) Solve for b, | 7b + 7 | = 42.
       A. 1, 5
        B. - 1, 4
        C. 1,3
       D. 5 , - 7

16) A figure is moved such that every point on it moves the same distance in the same direction. What is this process known as?
       A. Translation
        B. Reflection
        C. Rotation
       D. both a and b

17) If (8 - 2 + 5 + 4 - 4 + ______- 1 - 3) - 2 + 2 = 12 , find the missing number .
       A. 8
        B. 5
        C. 4
       D. 6

18) The number of toys with the children in a baby care center are 45, 51, 50, 52, 53, 60, 63 and 71. If the data are represented using a stem-and-leaf plot, find the stems.
       A. 4, 5, 6, 7, 8
        B. 4, 5, 6
        C. 4, 5, 6, 7
       D. 3, 4, 5, 6

19) 9000 pounds =_______ tons
       A. 5.5 t
        B. 45 t
        C. 4.5 t
       D. 0.45 t

20) A bag contains 3 white and 5 red balls. If a ball is drawn at random, the probabiilty that the drawn ball is red is _________.
       A. 5/15
        B. 5/8
        C. 3/8
       D. 3/15



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