Jamb 1983 Mathematics Questions
Question 26:
If \((\frac{2}{3})^{m} (\frac{3}{4})^{n} = \frac{256}{729}\), find the values of m and n.
- A M = 4, n = 2
- B M = -4, n = -2
- C M = -4, n =2
- D M = 4, n = -2
- E M = -2, n = 4
Question 28:
Factorize completely 81a4 - 16b4
- A (3a + 2b)(2a - 3b)(9a<sup style='font-size: smaller;'>2</sup> + 4b<sup style='font-size: smaller;'>2</sup>)
- B (3a - 2b)(2a - 3b)(4a<sup style='font-size: smaller;'>2</sup> - 9b<sup style='font-size: smaller;'>2</sup>)
- C (3a - 2b)(3a + 2b)(9a<sup style='font-size: smaller;'>2</sup> + 4b<sup style='font-size: smaller;'>2</sup>)
- D (6a - 2b)(8a - 3b)(4a<sup style='font-size: smaller;'>3</sup> - 9b<sup style='font-size: smaller;'>2</sup>)
Question 29:
One interior angle of a convex hexagon is 170o and each of the remaining interior angles is equal to xo. Find x
- A 120<sup style='font-size: smaller;'>o</sup>
- B 110<sup style='font-size: smaller;'>o</sup>
- C 105<sup style='font-size: smaller;'>o</sup>
- D 102<sup style='font-size: smaller;'>o</sup>
- E 100<sup style='font-size: smaller;'>o</sup>
Question 30:
A ship H leaves a port P and sails 30 km due south. Then it sails 50km due west. What is the bearing of H from P?
- A 20<sup style='font-size: smaller;'>o</sup> 34'
- B 243<sup style='font-size: smaller;'>o</sup> 26'
- C 116<sup style='font-size: smaller;'>o</sup> 34'
- D 63<sup style='font-size: smaller;'>o</sup> 26'
- E 240<sup style='font-size: smaller;'>o</sup> 56'