Mathematics Past Questions and Answers

In the diagram above, PST is a straight line, PQ = QS = RS. If ∠ RST = 72^o, find x

A 36^o
B 18^o
C 72^o
D 24^o

Question 1657:

In the diagram above are two concentric circles of radii r and R respectively with center O. If r = ²/₃R, express the area of the shaded portion in terms of π and R

A ²¹/₂₅πR²
B ⁹/₂₅πR²
C ²¹/₂₃πR²
D ⁵/₉πR²

Question 1658:

In the diagram above, a cylinder is summounted by a hemisphere bowl. Calculate the volume of the solid.

A 180 πcm³
B 162 πcm³
C 216 πcm³
D 198 πcm³

Question 1659:

The triangle PQR above is

A An obtuse-angled triangle
B A scalene triangle
C An isosceles triangle
D An equilateral triangle

Question 1660:

No. of days	1	2	3	4	5	6
No. of students	20	x	50	40	2x	60

The distribution above shows the number of days a group of 260 students were absents from school in a particular term. How many students were absent for at least four days in the term

A 210
B 40
C 120
D 160