Jamb Mathematics 1981 Past Questions and Answers

Question 6:

• JAMB 1981

Find the value of x satisfying \(\frac{x}{2}\) - \(\frac{1}{3}\) < \(\frac{2x}{5}\) + \(\frac{1}{6}\)

A. X < 5
B. X < 7\(\frac{1}{2}\)
C. X > 5
D. X > 7\(\frac{1}{2}\)

Question 7:

• JAMB 1981

A group of 14 children children received the following scores in a reading test: 35, 35, 26, 26, 26, 29, 29, 29, 12, 25, 25, 25, 25, 17. What was the median score?

A. 29
B. 26
C. 24
D. 25
E. 23

Question 8:

• JAMB 1981

Which of the following fractions is less than one-third?

A. \(\frac{22}{63}\)
B. \(\frac{4}{11}\)
C. \(\frac{15}{46}\)
D. \(\frac{33}{98}\)
E. \(\frac{122}{303}\)

Question 9:

• JAMB 1981

A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height?

A. 9cm
B. \(\sqrt{65}\)cm
C. \(4\sqrt{2}\)cm
D. 7cm
E. 6.5cm

Question 10:

• JAMB 1981

Evaluate correct to 4 decimal places 827.51 x 0.015

A. 8.8415
B. 12.4127
C. 124.1265
D. 12.4120
E. 114.1265