Jamb Mathematics Past Questions
Question 6
After getting a rise of 15%, a man's new monthly salary is N345. How much per month did he earn before the increase?
- A. N330
- B. N396.75
- C. N300
- D. N293.25
- E. N360
Question 7
In base ten, the number 101101 (base 2) equals
- A. 15
- B. 4
- C. 45
- D. 32
- E. 90
Question 8
The annual profits of a transport business were divided between the partners A and B in the ratio 3 : 5. If B received N3000 more than A, the total profit was
- A. N5000
- B. N1800
- C. N12000
- D. N24000
- E. N8000
Question 9
x is directly proportional to y and inversely proportional to z. If x = 9 when y = 24 and z = 8, what is the value of x when y = 5 and z = 6?
- A. \(\frac{5}{6}\)
- B. \(11\)
- C. \(3 \frac{3}{5}\)
- D. \(2 \frac{1}{2}\)
- E. \(1 \frac{1}{5}\)
Question 10
The solution of the equation \(x^2 - x - 6 = 0\) is
- A. x = 0 or x = 2
- B. x = -2 or x = 4
- C. x = 2
- D. x = -4
- E. x = 3 or x = -2
