Jamb Mathematics Past Questions For Year 1989
Question 11
Find p in terms of q if \(\log_{3} p + 3\log_{3} q = 3\)
- A. (\(\frac{3}{q}\))3
- B. (\(\frac{q}{3}\))\(\frac{1}{3}\)
- C. (\(\frac{q}{3}\))3
- D. (\(\frac{3}{q}\))\(\frac{1}{3}\)
Question 12
What are the values of y which satisfy the equation \(9^{y} - 4 \times 3^{y} + 3 = 0\) ?
- A. -1 and 0
- B. -1 and 1
- C. 1 and 3
- D. 0 and 1
Question 13
Make R the subject of the fomula S = \(\sqrt{\frac{2R + T}{2RT}}\)
- A. R = \(\frac{T}{(TS^2 + 1)}\)
- B. R = \(\frac{T}{2(TS^2 - 2)}\)
- C. R = \(\frac{T}{2(TS^2 + 1)}\)
- D. R = \(\frac{R}{2(TS^2 + 1)}\)
Question 14
The cost of dinner for a group of students is partly constant and partly varies directly as the number of students. If the cost is N74.00 when the number of is 20 and N96.00 when the number is 30, find the cost when there are 15 students
- A. N68.50
- B. N63.00
- C. N60.00
- D. N52.00
Question 15
If \(f(x) = 2x^2 - 5x + 3\), find f(x + 1).
- A. 2x2 - x
- B. 2x2 - x + 10
- C. 4x2 + 3x + 2
- D. 4x2 + 3x + 12
