Jamb Mathematics 1998 Past Questions and Answers

Question 36:

• JAMB 1998

In a recent zonal championship games involving 10 teams, teams X and Y were given probabilities \(\frac{2}{5}\) and \(\frac{1}{3}\) respectively of winning the gold in the football event. What is the probability that either team will win the gold?

A. \(\frac{2}{15}\)
B. \(\frac{7}{15}\)
C. \(\frac{11}{15}\)
D. \(\frac{13}{15}\)

Question 37:

• JAMB 1998

If x, y can take values from the set (1, 2, 3, 4), find the probability that the product of x and y is not greater than 6

A. \(\frac{5}{8}\)
B. \(\frac{5}{16}\)
C. \(\frac{1}{2}\)
D. \(\frac{3}{8}\)

Question 38:

• JAMB 1998

For what value of x does 6 sin (2x - 25)^o attain its maximum value in the range 0^o \(\leq\) x \(\leq\) 180^o

A. 12\(\frac{1}{2}\)
B. 32\(\frac{1}{2}\)
C. 57\(\frac{1}{2}\)
D. 147\(\frac{1}{2}\)

Question 39:

• JAMB 1998

In the venn diagram, the shaded region is

A. (P \(\cap\) Q) \(\cup\) R
B. (P \(\cap\) Q) \(\cap\) R
C. (P \(\cap\) Q¹) \(\cap\) R
D. (P \(\cap\) Q¹) \(\cup\) R

Question 40:

• JAMB 1998

The shaded area represents

A. X \(\leq\) 0, y \(\leq\) 0, 2y + 3x \(\leq\) 6
B. X \(\geq\) 0, y \(\geq\) 3, 3x + 2y \(\geq\) 6
C. X \(\geq\) 2, y \(\geq\) 0, 3x + 2y \(\leq\) 6
D. X \(\geq\) 0, y \(\geq\) 0, 3x + 2y \(\geq\) 6