Waec Mathematics 2012 Past Questions and Answers

Question 6:

• WAEC 2012

The n^th term of a sequence is T_n = 5 + (n - 1)². Evaluate T₄ - T₆

A. 30
B. 16
C. -16
D. -30

Question 7:

• WAEC 2012

Mr. Manu travelled from Accra to Pamfokromb a distance of 720km in 8 hours. What will be his speed in m/s?

A. 25m/s
B. 150m/s
C. 250m/s
D. 500m/s

Question 8:

• WAEC 2012

If N2,500.00 amounted to N3,50.00 in 4 years at simple interest, find the rate at which the interest was charged

A. 5%
B. 7\(\frac{1}{2}\)%
C. 8%
D. 10%

Question 9:

• WAEC 2012

Solve for x in the equation; \(\frac{1}{x} + \frac{2}{3x} = \frac{1}{3}\)

A. 5
B. 4
C. 3
D. 1

Question 10:

• WAEC 2012

Simplify: \(\frac{54k^2 - 6}{3k + 1}\)

A. 6(1 - 3k²)
B. 6(3k² - 1)
C. 6(3k - 1)
D. 6(1 - 3k)