Waec Mathematics 2013 Past Questions and Answers

Question 16:

• WAEC 2013

A cube and cuboid have the same base area. The volume of the cube is 64cm\(^3\) while that of the cuboid is 80cm\(^3\). Find the height of the cuboid

A. 1cm
B. 3cm
C. 5cm
D. 6cm

Question 17:

• WAEC 2013

If sin x = \(\frac{5}{13}\) and 0^o \(\leq\) x \(\leq\) 90^o, find the value of (cos x - tan x)

A. \(\frac{7}{13}\)
B. \(\frac{12}{13}\)
C. \(\frac{79}{156}\)
D. \(\frac{209}{156}\)

Question 18:

• WAEC 2013

An object is 6m away from the base of a mast. The angle of depression of the object from the top pf the mast is 50^o, Find, correct to 2 decimal places, the height of the mast

A. 8.60m
B. 7.51m
C. 7.15m
D. 1.19m

Question 19:

• WAEC 2013

The bearing of Y from X is 060^o and the bearing of Z from Y = 060^o. Find the bearing of X from Z

A. 300^o
B. 240^o
C. 180^o
D. 120^o

Question 20:

• WAEC 2013

Which of the following is not a probability of Mary scoring 85% in a mathematics test?

A. 0.15
B. 0.57
C. 0.94
D. 1.01