Jamb Mathematics 2023 Past Questions and Answers

Question 76:

• JAMB 2023

A man sells different brands of an items. \(^1/_9\) of the items he has in his shop are from Brand A, \(^5/_8\) of the remainder are from Brand B and the rest are from Brand C. If the total number of Brand C items in the man's shop is 81, how many more Brand B items than Brand C does the shop has?

A. 243
B. 108
C. 54
D. 135

Question 77:

• JAMB 2023

Find the area, to the nearest cm\(^2\), of the triangle whose sides are in the ratio 2 : 3 : 4 and whose perimeter is 180 cm.

A. 1162 cm\(^2\)
B. 1163 cm\(^2\)
C. 1160 cm\(^2\)
D. 1161 cm\(^2\)

Question 78:

• JAMB 2023

Find the compound interest (CI) on ₦15,700 for 2 years at 8% per annum compounded annually.

A. ₦6,212.48
B. ₦2,834.48
C. ₦18,312.48
D. ₦2,612.48

Question 79:

• JAMB 2023

Find the volume of the cylinder above
[Take \(\pi= ^{22}/_7\)]

A. 9,856 cm\(^3\)
B. 14,784 cm\(^3\)
C. 4,928 cm\(^3\)
D. 19,712 cm\(^3\)

Question 80:

• JAMB 2023

The third term of an A.P is 6 and the fifth term is 12. Find the sum of its first twelve terms

A. 201
B. 144
C. 198
D. 72