Jamb Mathematics 1983 Past Questions and Answers

Question 21:

• JAMB 1983

Find the missing value in the following table \(\begin{array}{c|c} x & -2 & -1 & 0 & 1 & 2 & 3 \\ \hline Y = x^3 - x + 3 & & 3 & 3 & 3 & 9 & 27\end{array}\)

A. -3
B. 3
C. -9
D. 13
E. 9

Question 22:

• JAMB 1983

Find the angle of the sectors representing each item in pie chart of the following data 6, 10, 14, 16, 26

A. 15^o, 25^o, 35^o, 40^o, 65^o
B. 60^o, 100^o, 140^o, 160^o, 260^o
C. 6^o, 10^o, 14^o, 16^o, 26^o
D. 30^o, 50^o, 70^o, 80^o, 130^o
E. None of the above

Question 23:

• JAMB 1983

The scores of 16 students in a Mathematics test are 65, 65, 55, 60, 60, 65, 60, 70, 75, 70, 65, 70, 60, 65, 65, 70. What is the sum of the median and modal scores?

A. 125
B. 130
C. 140
D. 150
E. 137.5

Question 24:

• JAMB 1983

The letters of the word MATRICULATION are cut and put into a box. One letter is drawn at random from the box. Find the probability of drawing a vowel

A. \(\frac{7}{13}\)
B. \(\frac{5}{13}\)
C. \(\frac{6}{13}\)
D. \(\frac{8}{13}\)
E. \(\frac{4}{13}\)

Question 25:

• JAMB 1983

Correct each of the numbers 59.81798 and 0.0746829 to three significant figures and multiply them, giving your answer to three significant figures

A. 4.46
B. 4.48
C. 4.47
D. 4.49
E. 4.50