Jamb Mathematics 1982 Past Questions and Answers

Question 21:

• JAMB 1982

Express 37.05 x 0.0042 in standard form

A. 15.561 x 10²
B. 1.5561 x 10^-4
C. 1.556 x 10^-1
D. 1.5561 x 10¹
E. 1.55 x 10¹

Question 22:

• JAMB 1982

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:

• JAMB 1982

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 60^o to the vertical?

A. It does not rise
B. 2\(\sqrt{3}\) meters
C. 3 meters
D. 1 meters
E. 3

Question 24:

• JAMB 1982

Express 130 kilometers per second in meters per hour

A. 7.8 x 10^-5
B. 4.68 x 10⁶
C. 7,800,000
D. 4.68 x 10⁸
E. 7.80 x 10⁵

Question 25:

• JAMB 1982

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 - \(\frac{P}{x^2}\)