Jamb Mathematics 1993 Past Questions and Answers

Question 31:

• JAMB 1993

If sin \(\theta\) = cos \(\theta\), find \(\theta\) between 0o and 360o

A. 45^o, 225^o
B. 135^o, 315^o
C. 45^o, 315^o
D. 135^o, 225^o

Question 32:

• JAMB 1993

If two angles of a triangle are 30° each and the longest side is 10cm. Calculate the length of each of the other sides.

A. 5cm
B. 4cm
C. 3√3 cm
D. \(\frac{10\sqrt{3}}{3}\)cm

Question 33:

• JAMB 1993

Quantities in the proportions 1, 4, 6, 7 are to be represented in a pie chart. Calculate the angle of the sector with proportion 7

A. 20^o
B. 80^o
C. 120^o
D. 140^o

Question 34:

• JAMB 1993

The following marks were obtained by twenty students in an examination: 53, 30, 70, 84, 59, 43, 90, 20, 78, 48, 44, 60, 81, 73, 50, 37, 67, 68, 64, 52. Find the numbers of students who scored at least 50 marks

A. 6
B. 10
C. 13
D. 14

Question 35:

• JAMB 1993

\(\begin{array}{c|c} Weight(s) & 0 -10 & 10 - 20 & 20 - 30 & 40 - 50\\ \hline \text{Number of coconuts} & 10 & 27 & 19 & 6 & 2\end{array}\)
Estimate the mode of the frequency distribution above

A. 13.2g
B. 15.0g
C. 16.8g
D. 17.5g