Jamb Mathematics 2023 Past Questions and Answers

Question 1:

• JAMB 2023

Express 16.54 x 10\(^{-5}\) - 6.76 x 10\(^{-8}\) + 0.23 x 10\(^{-6}\) in standard form

A. 1.66 x 10\(^{-4}\)
B. 1.66 x 10\(^{-5}\)
C. 1.65 x 10\(^{-5}\)
D. 1.65 x 10\(^{-4}\)

Question 2:

• JAMB 2023

The graph above depicts the performance ratings of two sports teams A and B in five different seasons

In the last five seasons, what was the difference in the average performance ratings between Team B and Team A?

A. 1.2
B. 6.4
C. 4.6
D. 1.8

Question 3:

• JAMB 2023

A student is using a graduated cylinder to measure the volume of water and reports a reading of 18 mL. The teacher reports the value as 18.4 mL. What is the student's percent error?

A. 2.17%
B. 1.73%
C. 2.23%
D. 1.96%

Question 4:

• JAMB 2023

The difference between an exterior angle of (n - 1) sided regular polygon and an exterior angle of (n + 2) sided regular polygon is 6\(^o\), then the value of "n" is

A. 11
B. 13
C. 12
D. 14

Question 5:

• JAMB 2023

Two dice are tossed. What is the probability that the total score is a prime number.

A. \(\frac{5}{12}\)
B. \(\frac{5}{9}\)
C. \(\frac{1}{6}\)
D. \(\frac{1}{3}\)