Surface areas and Volumes of composite figures - Jamb Mathematics Past Questions and Answers

Question 1:

• JAMB 1979

The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is

A. 1.5
B. 0.8
C. 1.0
D. 1.02
E. 1.05

Question 2:

• JAMB 1978

A hollow right prism of equilateral triangular base of side 4cm is filled with water up to a certain height. If a sphere of radius \(\frac{1}{2}\)cm is immersed in the water, then the rise of water is

A. 1cm
B. \(\sqrt{\frac{3\pi}{24}}\)
C. \(\frac{\pi}{24\sqrt{3}}\)
D. 24\(\sqrt{3}\)

Question 3:

• JAMB 1988

In the figure, PS = 7cm and RY = 9cm. IF the area of parallelogram PQRS is 56cm². Find the area of trapezium PQTS

A. 56cm²
B. 112cm²
C. 120cm²
D. 176cm²

Question 4:

• JAMB 1988

In the figure, PS = RS = QS and QRS = 50°. Find QPR

A. 25^O
B. 40^O
C. 50^O
D. 65^O

Question 5:

• JAMB 1988

In the figure, XR and YQ are tangents to the circle YZXP if ZXR = 45° and YZX = 55°, Find ZYQ

A. 135^O
B. 125^O
C. 100^O
D. 90^O