Jamb Mathematics Past Questions and Answers

Question 321:

• JAMB 2015

Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

A. 17.8cm²
B. 15.8cm²
C. 75.4cm²
D. 54.7cm²
E. \(377.1cm^{2}\)

Question 322:

• JAMB 2015

If x + y = 90 simplify (sinx + siny)2−2sinxsiny

A. 1
B. O
C. 2
D. -1

Question 323:

• JAMB 2015

A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much tax does he pay each year?

A. 15
B. 20
C. 30
D. 25

Question 324:

• JAMB 2015

Solve the equation \( 3x^2 − 4x − 5 = 0 \)

A. X = 1.75 or − 0.15
B. X = 2.12 or − 0.79
C. X = 1.5 or − 0.34
D. X = 2.35 or −1.23

Question 325:

• JAMB 2015

The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms

A. Nth = 3
B. Nth = 4
C. Nth = 5
D. Nth = 6