Mathematics Past Questions and Answers

If the mean of the following set of data, 2, 3,3,3, 2,4 4 and 3 is divided by its mode, the result is:

Question 77:

The diagonals of a rhombus are 16cm and 30cm long. What is the perimeter of the rhombus

A 68cm
B 72cm
C 80cm
D 88cm
E 92cm

Question 78:

A bag Contains 2 red, 3 blue and 4 green identical balls. If two balls are picked at random one after the other without replacement, what is the probability that both are green?

A \(\frac{1}{6}\)
B \(\frac{1}{3}\)
C \(\frac{16}{18}\)
D \(\frac{3}{8}\)
E \(\frac{4}{9}\)

Question 79:

A man is 40m from the foot of a cliff of height 23m. Calculate the angle of elevation of the top of the cliff from the man

A 50° 54′
B 35° 06′
C 30° 00′
D 290 90′
E 29° 54′

Question 80:

Express the product of 0.007 and 0.057 to two significant figures

A 0.0004
B 0.00039
C 0.004
D 0.0039
E 0.04