ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 226:

• JAMB 1988

The solutions of x2 - 2x - 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x - x2, find the second graph

A. Y = 1 - x
B. Y = 1 + x
C. Y = x - 1
D. Y = 3x + 3

Question 227:

• JAMB 1988

If the sum of the 8th and 9th terms of an arithmetic progression is 72 and the 4th term is -6, find the common difference

A. 4
B. 8
C. 6\(\frac{2}{3}\)
D. 9\(\frac{1}{3}\)

Question 228:

• JAMB 1988

If 7 and 189 are the first and fourth terms of geometric progression respectively, find the sum of the first three terms of the progression

A. 182
B. 91
C. 63
D. 28

Question 229:

• JAMB 1988

if x is the addition of the prime numbers between 1 and 6; and y the H.C.F. of 6, 9, 15. Find the product of x and y

A. 27
B. 30
C. 33
D. 90

Question 230:

• JAMB 1988

Simplify \(\frac{x + 2}{x + 1}\) - \(\frac{x - 2}{x + 2}\)

A. \(\frac{3}{x + 1}\)
B. \(\frac{3x + 2}{(x + 1)(x + 2)}\)
C. \(\frac{5x + 6}{(x + 1)(x + 2)}\)
D. \(\frac{2x^2 + 5x + 2}{(x + 1)(x + 2)}\)