Mathematics Past Questions and Answers

Find the reciprocal of \(\frac{\frac{2}{3}}{\frac{1}{2} + \frac{1}{3}}\)

A \(\frac{4}{5}\)
B \(\frac{5}{4}\)
C \(\frac{2}{5}\)
D \(\frac{6}{7}\)

Question 7:

Three boys shared some oranges. The first received \(\frac{1}{3}\) of the oranges, the second received \(\frac{2}{3}\) of the remainder. If the third boy received the remaining 12 oranges, how many oranges did they share?

A 60
B 54
C 48
D 42

Question 8:

If P = 18, Q = 21, R = -6 and S = -4, Calculate \(\frac{(P- Q)^3 + S^2}{R^3}\)

A \(\frac{-11}{216}\)
B \(\frac{11}{216}\)
C \(\frac{-43}{116}\)
D \(\frac{43}{116}\)

Question 9:

Simplify \(\frac{0.0324 \times 0.00064}{0.48 \times 0.012}\)

A 3.6 x 10²
B 3.6 x 10^-2
C 3.6 x 10^-3
D 3.6 x 10^-4

Question 10:

Udoh deposited N150.00 in the bank. At the end of 5 years the simple interest on the principal was N55.00. At what rate per annum was the interest paid?

A 11%
B 7\(\frac{1}{3}\)%
C 5
D 3\(\frac{1}{2}\)%