Jamb Mathematics 1985 Past Questions and Answers

Question 41:

• JAMB 1985

If a{\(\frac{x + 1}{x - 2} - \frac{x - 1}{x + 2}\)} = 6x. Find a in its simplest form

A. X² - 1
B. X² + 1
C. X² + 4
D. X² - 4
E. 1

Question 42:

• JAMB 1985

In \(\bigtriangleup\) XYZ, XKZ = 90^O, XK = 15cm, XY = 35cm and YK = 8cm. Find the area of \(\bigtriangleup\)XYZ

A. 190 sq.cm
B. 20 sq.cm
C. 210 sq.cm
D. 160sq.cm
E. 320sq.cm

Question 43:

• JAMB 1985

In the figure, MNQP is a cyclic quadrilateral. MN and Pq are produced to meet at X and NQ and MP are produced to meet at Y. If MNQ = 86^o and NQP = 122^o find (x^o, y^o)

A. 28^o, 36^o
B. 36^o, 28^o
C. 43^o, 61^o
D. 61^o, 43^o
E. 36^o, 43^o

Question 44:

• JAMB 1985

In the figure POQ is the diameter of the circle PQR. If PSR = 145^o, find x^o

A. 25^o
B. 35^o
C. 45^o
D. 125^o
E. 55^o

Question 45:

• JAMB 1985

In the figure, GHIJKLMN is a cube of side a. Find the length of HN.

A. \(\sqrt{3a}\)
B. 3a
C. 3a²
D. A\(\sqrt{2}\)
E. A\(\sqrt{3}\)