Jamb 1982 Mathematics Questions
Question 16:
Given that p:q = \(\frac{1}{3}\):\(\frac{1}{2}\) and q:r = \(\frac{2}{5}\), find p:r
- A 4:105
- B 7:15
- C 20:21
- D 2:35
- E 3:20
Question 17:
If sin \(\theta\) = \(\frac{m - n}{m + n}\); Find the value of 1 + tan2\(\theta\)
- A \(\frac{(m^2 + n^2)}{m + n}\)
- B \(\frac{(m^2 + n^2 + 2mn)}{4mn}\)
- C \(\frac{2(m^2 + n^2 + mn)}{m + n}\)
- D \(\frac{(m^2 + n^2 + mn)}{m + n}\)
Question 18:
The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought?
- A M246<sub style='font-size: smaller;'>7</sub>
- B M242<sub style='font-size: smaller;'>7</sub>
- C M236<sub style='font-size: smaller;'>7</sub>
- D M341<sub style='font-size: smaller;'>7</sub>
- E M338<sub style='font-size: smaller;'>7</sub>
Question 19:
Solve for x, If \(\frac{\frac{2}{x}}{\frac{p^2 + p^2}{p^2 + p^2}}\) = m
- A \(\frac{4pq}{m(p + q)}\)
- B \(\frac{2p^2q^2}{m(q^2 + p^2)}\)
- C \(\frac{2pq}{m(q^2 + p^2)}\)
- D \(\frac{2p^2q^2}{m(p^2)}\)
Question 20:
Express 37.05 x 0.0042 in standard form
- A 15.561 x 10<sup style='font-size: smaller;'>2</sup>
- B 1.5561 x 10<sup style='font-size: smaller;'>-4</sup>
- C 1.556 x 10<sup style='font-size: smaller;'>-1</sup>
- D 1.5561 x 10<sup style='font-size: smaller;'>1</sup>
- E 1.55 x 10<sup style='font-size: smaller;'>1</sup>