Mathematics 2010 Waec Past Questions and Answers

Question 11 :

• WAEC 2010

Given that = {x: -2 < x \(\leq\) 9}, where x is an integer what is n(T)?

A. 9
B. 10
C. 11
D. 12

Question 12 :

• WAEC 2010

Solve the inequality: 3(x + 1) \(\leq\) 5(x + 2) + 15

A. X \(\geq\) -14
B. X \(\leq\) - 14
C. X \(\geq\) -11
D. X \(\leq\) - 11

Question 13 :

• WAEC 2010

An empty rectangular tank is 250cm long and 120cm wide. If 180 litres of water is poured into the tank. Calculate the height of the water

A. 6.0cm
B. 5.5cm
C. 5.0cm
D. 4.5cm

Question 14 :

• WAEC 2010

Given that \(\frac{5^{n +3}}{25^{2n -2}}\) = 5^o, find n

A. N = 1
B. N = 2
C. N = 3
D. N = 5

Question 15 :

• WAEC 2010

\(\begin{array}{c|c} \text{No. of pets} & 0 & 1 & 2 & 3 & 4 \\ \hline \text{No. of students} & 8 & 4 & 5 & 10 & 3\end{array}\) The table shows the number of pets kept by 30 students in a class. If a student is picked at random ftom the class. What is the probability that he/she kept more than one pet?

A. \(\frac{1}{5}\)
B. \(\frac{2}{5}\)
C. \(\frac{3}{5}\)
D. \(\frac{4}{5}\)