Mathematics Past Questions and Answers

Thirty boys and x girls sat for a rest. The mean of the boys scores and that of the girls were respectively 6 and 8. Find x if the total scores was 468

A 38
B 24
C 36
D 22
E 41

Question 7:

The cost of production of an article is made up as follows: Labour N70, Power N15, Materials N30, Miscellaneous N5. Find the angle of the sector representing Labour in a pie chart

A 210o
B 105o
C 105o
D 175o
E 90o

Question 8:

Bola choose at random a number between 1 and 300. What is the probability that the number is divisible by 4?

A \(\frac{1}{4}\)
B \(\frac{4}{4}\)
C \(\frac{6}{4}\)
D \(\frac{7}{4}\)
E \(\frac{37}{149}\)

Question 9:

Find, without using logarithm tables, the value of \(\frac{log_3 27 - log_{\frac{1}{4}} 64}{log_3 \frac{1}{81}}\)

A \(\frac{-3}{9}\)
B \(\frac{-3}{2}\)
C \(\frac{6}{11}\)
D \(\frac{43}{78}\)

Question 10:

A variable point p(x, y) traces a graph in a two-dimensional plane. (0, 3) is one position of P. If x increases by 1 unit, y increases by 4 units. The equation of the graph is

A -3 = \(\frac{y + 4}{x + 1}\)
B 4y = -3 + x
C \(\frac{y}{x}\) = \(\frac{-3}{4}\)
D 4x = y + 3