Jamb 1982 Mathematics Questions
Question 21:
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>
Question 22:
Find the values of x for which the expression \(\frac{(x - 3)(x - 2)}{x^2 + x - 2}\)
- A 1, -2
- B -1, 2
- C 2, 3
- D -1. -2
- E -2, -3
Question 23:
A stone Q is tied to a point P vertically above Q by an inelastic string of length 2 meters. How high does the stone rise when the string is inclined at an angle 60o to the vertical?
- A It does not rise
- B 2\(\sqrt{3}\) meters
- C 3 meters
- D 1 meters
- E 3
Question 24:
Express 130 kilometers per second in meters per hour
- A 7.8 x 10<sup style='font-size: smaller;'>-5</sup>
- B 4.68 x 10<sup style='font-size: smaller;'>6</sup>
- C 7,800,000
- D 4.68 x 10<sup style='font-size: smaller;'>8</sup>
- E 7.80 x 10<sup style='font-size: smaller;'>5</sup>
Question 25:
The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is
- A Y = Q + \(\frac{P}{x^2}\)
- B Y = Q + px
- C Y = \(\frac{PQ}{x^2}\)
- D Y = Q - \(\frac{P}{x^2}\)