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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 86:

Let p be a probability function on set S, where S = (a₁, a₂, a₃, a₄). Find P(a₁) if P(a₂) = \(\frac{1}{3}\), p(a₃) = \(\frac{1}{6}\) and p(a₄) = \(\frac{1}{5}\)

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A \(\frac{7}{3}\)
B \(\frac{2}{3}\)
C \(\frac{1}{3}\)
D \(\frac{3}{10}\)

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Question 87:

A die has four of it's faces coloured white and the remaining two coloured black. What is the probability that when the die is thrown two consecutive time, the top face will be white in both cases?

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A \(\frac{2}{3}\)
B \(\frac{1}{9}\)
C \(\frac{4}{9}\)
D \(\frac{1}{36}\)

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Question 88:

Use the graph of the curve y = f(x)to solve the inequality f(x) \(\leq\) 0

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A -1 \(\geq\) x \(\geq\) 1, x \(\geq\) 2
B X \(\leq\) -1, 1 \(\geq\) x \(\geq\) 2
C X \(\geq\) -1, 1 \(\geq\) x \(\geq\) 2
D X \(\geq\) 2, -1 \(\geq\) x \(\geq\) 1

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Question 89:

Determine the value of x in the figure

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A 134^o
B 81^o
C 53^o
D 46^o

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Question 90:

PT is a tangent to the circle TYZX. YT = YX and < PTX = 50^o. Calculate < TZY

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A 50^o
B 65^o
C 85^o
D 130^o

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