Waec Mathematics Past Questions and Answers

Question 1351:

• WAEC 2011

Solve for x in the equation; \(\frac{3}{5}\)(2x - 1) = \(\frac{1}{4}\)(5x - 3)

A. Zero
B. 1
C. 2
D. 3

Question 1352:

• WAEC 2011

Given that cos x^o = \(\frac{1}{r}\), express tan x[sup][/sup] in terms of r

A. \(\frac{1}{\sqrt{r}}\)
B. \(\sqrt{r}\)
C. \(\sqrt{r^2 + 1}\)
D. \(\sqrt{r^2 - 1}\)

Question 1353:

• WAEC 2011

Solve the equation; 3x - 2y = 7, x + 2y = -3

A. X = 1, y = -2
B. X = 1, y = 3
C. X = -2, y = -1
D. X = 4, y = -3

Question 1354:

• WAEC 2011

If a number is chosen at random from the set {x: 4 \(\leq x \leq 45\)}. Find the probability that it is a multiple of 3 or a multiple of 4

A. \(\frac{1}{12}\)
B. \(\frac{5}{12}\)
C. \(\frac{7}{2}\)
D. \(\frac{11}{12}\)

Question 1355:

• WAEC 2011

One of the factors of (mn - nq - n2 + mq) is (m - n). The other factor is

A. (n - q)
B. (q - n)
C. (n + q)
D. (q - m)