Jamb Mathematics 2023 Past Questions and Answers

Question 6:

• JAMB 2023

Find the volume of the composite solid above.

A. 2048 cm\(^3\)
B. 2568 cm\(^3\)
C. 2672 cm\(^3\)
D. 1320 cm\(^3\)

Question 7:

• JAMB 2023

Find the area and perimeter of a square whose length of diagonals is 20\(\sqrt2\) cm.

A. 800 cm\(^2\), 80 cm
B. 400 cm, 80 cm\(^2\)
C. 80 cm, 800 cm\(^2\)
D. 400 cm\(^2\), 80 cm

Question 8:

• JAMB 2023

Bello buys an old bicycle for ₦9,200.00 and spends ₦1,500.00 on its repairs. If he sells the bicycle for ₦13,400.00, his gain percent is

A. 25.23%
B. 31.34%
C. 88.81%
D. 42.54%

Question 9:

• JAMB 2023

Evaluate \(\frac{5}{8} - \frac{3}{4} ÷ \frac{5}{12} \times \frac{1}{4}\)

A. - \(\frac{3}{40}\)
B. \(\frac{3}{40}\)
C. \(\frac{7}{40}\)
D. -\(\frac{263}{40}\)

Question 10:

• JAMB 2023

A rectangle has one side that is 6 cm shorter than the other. The area of the rectangle will increase by 68 cm\(^2\) if we add 2 cm to each side of the rectangle. Find the length of the shorter side.

A. 15 cm
B. 19 cm
C. 13 cm
D. 21 cm