Jamb Mathematics 1980 Past Questions and Answers

Question 41:

• JAMB 1980

If PN is perpendicular to QR, find the value of tan x.

A. \(\frac{5}{9}\)
B. \(\frac{3}{5}\)
C. \(\frac{3}{4}\)
D. \(\frac{4}{3}\)
E. \(\frac{5}{3}\)

Question 42:

• JAMB 1980

In the figure, PQ\\SR, ST\\, ST\\RQ, PS = 7cm, PT = 7cm, SR = 4cm. Find the ratio of the area QRST to the area of PQRS.

A. 56.77
B. 56.105
C. 28:105
D. 28:49
E. 56:49

Question 43:

• JAMB 1980

In the figure, If PT is parallel to RS, PQ = PT, and angle SQT = 90^o, Find x

A. 35^o
B. 50^o
C. 55^o
D. 70^o
E. 80^o

Question 44:

• JAMB 1980

In the figure, PS bisects angle QPR. Find the ratio SR:QR.

A. 1:2
B. 1:3
C. 1:4
D. 1:5
E. 1:6

Question 45:

• JAMB 1980

fG is a given straight line and H is a fixed point. The construction marks shown in the diagram indicate the

A. Perpendicular bisector of the line
B. Perpendicular bisector of th eline JK
C. Perpendicular bisector of the line HI
D. Perpendicular from H to the line FG