Mathematics Past Questions and Answers

Reach each number to two significant figures and then evaluate \(\frac{0.02174 \times 1.2047}{0.023789}\)

A O
B 0.9
C 1.1
D 1.2

Question 2342:

Four boys and ten girls can cut a field first in 5 hours. If the boys work at \(\frac{5}{4}\) the rate at which the girls work, how many boys will be needed to cut the field in 3 hours?

A 180
B 60
C 25
D 20

Question 2343:

What is the circumference of latitude 0\(^o\)S if R is the radius of the earth?

A Cos \(\theta\)
B 2\(\pi\)R cos \(\theta\)
C R sin \(\theta\)
D 2 \(\pi\) r sin \(\theta\)

Question 2344:

A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room

A \(\frac{15}{17}\)
B \(\frac{8}{17}\)
C \(\frac{8}{15}\)
D \(\frac{12}{17}\)

Question 2345:

The goals scored by 40 football teams from three league divisions are recorded below

No of goals	0	1	2	3	4	5	6
Frequency	4	3	15	16	1	0	1

What is the total number of goals scored by all the teams?

A 21
B 40
C 91
D 96