Jamb Mathematics Past Questions and Answers

Question 576:

• JAMB 1980

Evaluate \((2^{0} + 4^{-\frac{1}{2}})^{2}\)

A. \(\frac{1}{4}\)
B. \(\frac{5}{4}\)
C. \(\frac{9}{4}\)
D. 4
E. 9

Question 577:

• JAMB 1980

Which of the following is NOT a factor of 12\(^{4}\) - 5\(^{4}\)?

A. 7
B. 13
C. 17
D. 49
E. 169

Question 578:

• JAMB 1980

Rationalize the denominator of the given expression \(\frac{\sqrt{1 + a} - \sqrt{a}}{1 + a + \sqrt{a}}\)

A. 1 + 2a - 2\(\sqrt{a(1 + a)}\)
B. \(\sqrt{1(1 + a)}\)
C. 2a - 2\(\sqrt{a(1 + a)}\)
D. 1 + 2a - 2\(\sqrt{a + b}\)

Question 579:

• JAMB 1980

When a dealer sells a bicycle for N81 he makes a profit of 80%. What did he pay for the bicycle?

A. N73
B. N74.52
C. N75
D. N87.48
E. N75.52

Question 580:

• JAMB 1980

The median of the set of numbers 4, 9, 4, 13, 7, 14, 10, 17 is

A. 13
B. 7
C. \(\frac{19}{2}\)
D. \(\frac{39}{4}\)
E. 10