Jamb Mathematics 1993 Past Questions and Answers

Question 21:

• JAMB 1993

If x is negative, what is the range of values of x within which \(\frac{x + 1}{3}\) > \(\frac{1}{X + 3}\)

A. 3 < x < 4
B. -4 < x < -3
C. -2 < x < -1
D. -3 < x < 0

Question 22:

• JAMB 1993

A binary operation \(\ast\) is defined on a set of real numbers by x \(\ast\) y = x^y for all real values of x and y. If x \(\ast\) 2 = x. Find the possible values of x

A. 0, 1
B. 1, 2
C. 2, 2
D. 0, 2

Question 23:

• JAMB 1993

If k + 1; 2k - 1, 3k + 1 are three consecutive terms of a geometric progression, find the possible values of the common ratio

A. 0, 8
B. -1, \(\frac{5}{3}\)
C. 2, 3
D. 1, -1

Question 24:

• JAMB 1993

A man's initial salary is N540.00 a month and increases after each period of six months by N36.00 a month. Find his salary in the eighth month of the third year

A. N828.00
B. N756.00
C. N720.00
D. N684.00

Question 25:

• JAMB 1993

A rectangular polygon has 150^o as the size of each interior angle. How many sides has the polygon?

A. 12
B. 10
C. 9
D. 8