Jamb Mathematics 1983 Past Questions and Answers

Question 16:

• JAMB 1983

The scores of set of final year students in the first semester examination in a paper are 41, 29, 55, 21, 47, 70, 70, 40, 43, 56, 73, 23, 50, 50. Find the median of the scores.

A. 47
B. 50
C. 48\(\frac{1}{2}\)
D. 48
E. 49

Question 17:

• JAMB 1983

Find x if (x\(_4\))\(^2\) = 100100\(_2\)

A. 6
B. 12
C. 100
D. 210
E. 110

Question 18:

• JAMB 1983

Simplify log¹⁰ a^{\(\frac{1}{3}\)} + \(\frac{1}{4}\)log₁₀ a - \(\frac{1}{12}\)log₁₀a⁷

A. 1
B. \(\frac{7}{6}\)log₁₀ a
C. Zero
D. 10

Question 19:

• JAMB 1983

If w varies inversely as V and U varies directly as w³, Find the relationship between u and v given that u = 1, when v = 2

A. U = \(\frac{8}{v^3}\)
B. V = \(\frac{8}{u^2v^3}\)
C. U = 8v³
D. V = 8u²

Question 20:

• JAMB 1983

Solve the simultaneous equations for x in x² + y - 8 = 0, y + 5x - 2 = 0

A. -28, 7
B. 6, -28
C. 6, -1
D. -1, 7
E. 3, 2