Jamb Mathematics Past Questions For Year 1991
Question 16
Which of the following is a factor of rs + tr - pt - ps?
- A. (p - s)
- B. (s - p)
- C. r - p)
- D. r + p)
Question 17
Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x\(^2\) + xy = 6.
- A. -1 and 5
- B. -5 and 1
- C. 1 and 5
- D. 1 and 1
Question 18
Find the range of values of x which satisfy the inequality \(\frac{x}{2}\) + \(\frac{x}{3}\) + \(\frac{x}{4}\) < 1
- A. x < \(\frac{12}{13}\)
- B. x < 13
- C. x < 9
- D. \(\frac{13}{12}\)
Question 19
Find the positive number n, such that thrice its square is equal to twelve times the number
- A. 1
- B. 2
- C. 3
- D. 4
Question 20
What is the nth term of the progression 27, 9, 3,......?
- A. 27\(\frac{1}{3}\) n - 1
- B. 3n + 2
- C. 27 + 18(n - 1)
- D. 27 + 6(n - 1)
