Waec Mathematics Past Questions and Answers

Question 1766:

• WAEC 2017

The graph of y = \(ax^2 + bx + c\) is shown oon the diagram. Find the minimum value of y

A. -2, 0
B. -2, 1
C. -2, 3
D. -2, 5

Question 1767:

• WAEC 2017

In the diagram, PR is a diameter of the circle RSP, RP is produced to T and TS is a tangent to the circle at S. If < PRS = 24\(^o\), calculate the value of < STR

A. 24\(^o\)
B. 42\(^o\)
C. 48\(^o\)
D. 66\(^o\)

Question 1768:

• WAEC 2017

(a) If \((y - 1)\log_{10}4 = y\log_{10}16\), without using Mathematics tables or calculator, find the value of y.
(b) When I walk from my house at 4km/h, I will get to my office 30mins later than when I walk at 5km/h. Calculate the distance between my house and office.

Question 1769:

• WAEC 2017

(a) Solve the equation : \(\frac{2}{3}(3x - 5) - \frac{3}{5}(2x - 3) = 3\)
(b)
In the diagram, < STQ = m, < TUQ = 80°, < UPQ = r, < PQU = n and < RQT = 88°. Find the value of (m + n).

Question 1770:

• WAEC 2017

(a) The angle of depression of a point P on the ground from the top T of a building is 23.6°. If the distance from P to the foot of the building is 50m, calculate, correct to the nearest metre, the height if the building.
(b)
In the diagram, \(PT // SU, QS // TR, /SR/ = 6cm\) and \(/RU/ = 10 cm\). If the area of \(\Delta TRU = 45 cm^{2}\), calculate the area of the trapezium QTUS.