Jamb Mathematics Past Questions For Year 2019
Question 1
Make q the subject of the formula in the equation \(\frac{mn}{a^2} - \frac{pq}{b^2} = 1\)
- A. \(q = \frac{b^2(mn - a^2)}{a^2p}\)
- B. \(q = \frac{m^2 n - a^2}{p^2}\)
- C. \(q = \frac{mn - 2b^2}{a^2}\)
- D. \(q = \frac{b^2(n^2 - ma^2)}{n}\)
Question 2
The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.
- A. 148m
- B. 382m
- C. 282m
- D. 248m
Question 3
A binary operation \(\otimes\) is defined by \(m \otimes n = mn + m - n\) on the set of real numbers, for all m, n \(\in\) R. Find the value of 3 \(\otimes\) (2 \(\otimes\) 4).
- A. 6
- B. 25
- C. 15
- D. 18
Question 4
| Age in years | No of pupils |
|---|---|
| 7 | 4 |
| 8 | 13 |
| 9 | 30 |
| 10 | 44 |
| 11 | 9 |
- A. 48.6°
- B. 56.3°
- C. 46.8°
- D. 13°
Question 5
In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?
- A. 42
- B. 20
- C. 70
- D. 54
