## Mathematics 2018 Past Questions | JAMB

Study the following Mathematics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

41.

The table below shows the frequency of children of age x years in a hospital:

 x 1 2 3 4 5 6 7 8 f 3 4 5 6 7 6 5 4

Use the table to answer the question below:

How many children are in the hospital

• A. 36
• B. 40
• C. 44
• D. 50

42.

The figure below is a Venn diagram showing the elements arranged within sets A,B,C,ε.
Use the figure to answer this question

What is n(A U B)1 ?

• A. 2
• B. 3
• C. 4
• D. 7

43. What is the loci of a distance 4cm from a given point P?

• A. A straight line of length 4cm
• B. a circle of radius 4cm
• C. perpendicular to point P at 4cm
• D. a circle of diameter 4cm

44Given that Sin (5$$_x$$ − 28)$$^o$$ = Cos(3$$_x$$ − 50)$$^o$$, O$$_x$$ < 90$$^o$$

Find the value of x

• A. 14$$^o$$
• B. 21$$^o$$
• C. 32$$^o$$
• D. 39$$^o$$

45Find the average of the first four prime numbers greater than 10

• A. 20
• B. 19
• C. 17
• D. 15

46. Find the average of the first four prime numbers greater than 10

• A. 20
• B. 19
• C. 17
• D. 15

47. Convert 0.04945 to two significant figures

• A. 0.040
• B. 0.049
• C. 0.050
• D. 0.49

48.  Calculate 243$$_{six}$$ – 243$$_{five}$$ expressing your answer in base 10

• A. 0
• B. 1
• C. 26
• D. 46

49.  Evaluate ∫$$^2_1$$ $$\frac{5}{x}$$ dx

• A. 1.47
• B. 2.67
• C. 3.23
• D. 3.47

50. Tossing a coin and rolling a die are two separate events. What is the probability of obtaining a tail on the coin and an even number on the die?

• A. 1/16
• B. 1/6
• C. $\frac{1/}{4}$
• D. 3/8

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