Jamb Mathematics 1995 Past Questions and Answers

Question 86:

• JAMB 1995

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) = \(\frac{1}{5}\)

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

Question 87:

• JAMB 1995

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?

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

Question 88:

• JAMB 1995

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

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

Question 89:

• JAMB 1995

Determine the value of x in the figure

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

Question 90:

• JAMB 1995

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

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