Mathematics 2012 Waec Past Questions and Answers

Question 41 :

• WAEC 2012

The bar chart shows the frequency distribution of marks scored by students in a class test. How many students are in the class?

A. 10
B. 24
C. 25
D. 30

Question 42 :

• WAEC 2012

The bar chart shows the frequency distribution of marks scored by students in a class test. Calculate the mean of the distribution.

A. 6.0
B. 3.0
C. 2.4
D. 1.8

Question 43 :

• WAEC 2012

The bar chart shows the frequency distribution of marks scored by students in a class test. What is the median of the distribution?

A. 2
B. 4
C. 6
D. 8

Question 44 :

• WAEC 2012

The graph is that of y = 2x² - 5x - 3. For what value of x will y be negative? What is the gradient of y = 2x² - 5x - 3 at the point x = 4?

A. 11.1
B. 10.5
C. 10.3
D. 9.9

Question 45 :

• WAEC 2012

In the diagram, MN//PO, < PMN = 112^o, < PNO = 129^o, < NOP = 37^o and < MPN = y^o. Find the value of y

A. 51^o
B. 54^o
C. 56^o
D. 68^o