Jamb Mathematics 1983 Past Questions and Answers

Question 31:

• JAMB 1983

A ship H leaves a port P and sails 30 km due south. Then it sails 50km due west. What is the bearing of H from P?

A. 20^o 34'
B. 243^o 26'
C. 116^o 34'
D. 63^o 26'
E. 240^o 56'

Question 32:

• JAMB 1983

In a sample survey of a University Community, the following table shows the percentage distribution of the number of members per house hold
\(\begin{array}{c|c} \text{No. of members per household} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & \text{Total} \\ \hline \text{No. of households} & 3 & 12 & 15 & 28 & 21 & 10 & 7 & 4 & 100\end{array}\)
What is the median?

A. 4
B. 3
C. 5
D. 4.5
E. None

Question 33:

• JAMB 1983

On a square paper of length 2.524375cm is inscribed square diagram of length 0.524375cm. Find the area of the paper not covered by the diagram. correct to 3 significant figures.

A. 6.00cm²
B. 6.10cm²
C. 6cmv
D. 6.09cm²
E. 4.00cm²

Question 34:

• JAMB 1983

Simplify \(\sqrt[3]{\frac{27a^{-9}}{8}}\).

A. \(\frac{9a^2}{2a^3}\)
B. \(\frac{3}{2a^3}\)
C. \(\frac{2}{3a^2}\)
D. \(\frac{3a^2}{2}\)

Question 35:

• JAMB 1983

PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60^o. Find the perimeter of the figure PTRS. \(\pi\) = \(\frac{22}{7}\)

A. 25cm
B. 18cm
C. 36cm
D. 29cm
E. 25.5cm