Jamb Mathematics 1998 Past Questions and Answers

Question 1:

• JAMB 1998

If 1011₂ + x₇ = 25₁₀, solve for X.

A. 20₇
B. 14
C. 20
D. 24

Question 2:

• JAMB 1998

Evaluate [\(\frac{1}{0.03}\) \(\div\) \(\frac{1}{0.024}\)]^-1 correct to 2 decimal places

A. 3.76
B. 1.25
C. 0.94
D. 0.75

Question 3:

• JAMB 1998

If b³ = a^-2 and c^{\(\frac{1}{3}\)} = a^{\(\frac{1}{2}\)}b, express c in terms of a

A. A^{-\(\frac{1}{2}\)}
B. A^{\(\frac{1}{3}\)}
C. A^{\(\frac{3}{2}\)}
D. A^{\(\frac{2}{3}\)}

Question 4:

• JAMB 1998

Given that log₄(Y - 1) + log₄(\(\frac{1}{2}\)x) = 1 and log₂(y + 1) + log₂x = 2, solve for x and y respectively

A. 2, 3
B. 3, 2
C. -2, -3
D. -3, -2

Question 5:

• JAMB 1998

Find the value of k if \(\frac{k}{\sqrt{3} + \sqrt{2}}\) = k\(\sqrt{3 - 2}\)

A. 3
B. 2
C. \(\sqrt{3}\)
D. \(\sqrt 2\)