Waec Mathematics Past Questions and Answers

Question 121:

• WAEC 1990

If log x = \(\bar{2}.3675\) and log y = 0.9750, what is the value of x + y? Correct to three significant figures

A. 1.18
B. 1.31
C. 9.03
D. 9.44
E. 9.46

Question 122:

• WAEC 1990

While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate his percentage error

A. 1.17%
B. 6.38%
C. 7.44%
D. 8.035%
E. 9.00%

Question 123:

• WAEC 1990

Find the 4th term of an A.P, whose first term is 2 and the common difference is 0.5

A. 0.5
B. 2.5
C. 3.5
D. 4
E. 4.5

Question 124:

• WAEC 1990

From the graph determine the roots of the equation y = 2x² + x - 6

A. -3, 4
B. -2, -6
C. -2, 1.5
D. -1, 1
E. 2, 1.5

Question 125:

• WAEC 1990

Find the values of x for which y = 5

A. -2.5, 2.0
B. -2.6, 2.1
C. -2.0, 1.5
D. -2.0, 2.0
E. 0, 0