Mathematics 2019 Past Questions | JAMB
Study the following Mathematics past questions and answers for JAMB, WAEC NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.
- Make q the subject of the formula in the equation \(\frac{mn}{a^2} – \frac{pq}{b^2} = 1\)
- A. \(q = \frac{b^2(mn – a^2)}{a^2 p}\)
- B. \(q = \frac{m^2 n – a^2}{p^2}\)
- C. \(q = \frac{mn – 2b^2}{a^2}\)
- D. \(q = \frac{b^2 (n^2 – ma^2)}{n}\)
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
3. A binary operation ⊗⊗ is defined by m⊗n=mn+m−nm⊗n=mn+m−n on the set of real numbers, for all m, n ∈∈ R. Find the value of 3 ⊗⊗ (2 ⊗⊗ 4).
- A. 6
- B. 25
- C. 15
- D. 18
| Age in years | 7 | 8 | 9 | 10 | 11 |
| No of pupils | 4 | 13 | 30 | 44 | 9 |
- A. 48.6°
- B. 56.3°
- C. 46.8°
- D. 13°
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
- A. \(-5 – 2\sqrt{6}\)
- B. \(-5 + 3\sqrt{2}\)
- C. \(5 – 2\sqrt{3}\)
- D. \(5 + 2\sqrt{6}\)
7. 
Find the length of the chord |AB| in the diagram shown above.
- A. 4.2 cm
- B. 4.3 cm
- C. 3.2 cm
- D. 3.4 cm
8. Given
find p.
- A. 48°
- B. 58°
- C. 32°
- D. 52°
9. \(\frac{\frac{2}{3} \div \frac{4}{5}}{\frac{1}{4} + \frac{3}{5} – \frac{1}{3}}\)
- A. \(\frac{31}{50}\)
- B. \(\frac{20}{31}\)
- C. \(\frac{31}{20}\)
- D. \(\frac{50}{31}\)
10. If \(6x^3 + 2x^2 – 5x + 1\) divides \(x^2 – x – 1\), find the remainder.
- A. 9x + 9
- A. 2x + 6
- B. 6x + 8
- C. 5x – 3
