Mathematics 2001 Waec Past Questions and Answers

Question 1 :

• WAEC 2001

Which of the following correctly expresses 48 as a product of prime factors?

A. 3 x 4 x 4
B. 2 x 3 x 8
C. 2 x 2 x 2 x 3 x 4
D. 2 x 2 x 2 x 2 x 3

Question 2 :

• WAEC 2001

Which of the following correctly expresses 48 as a product of prime factors?

A. 3 x 4 x 4
B. 2 x 3 x 8
C. 2 x 2 x 2 x 3 x 4
D. 2 x 2 x 2 x 2 x 3

Question 3 :

• WAEC 2001

Evaluate \((20_{three})^2 - (11_{three})^2\) in base three

A. 101
B. 121
C. 202
D. 2020

Question 4 :

• WAEC 2001

Evaluate \(log_{10}5 + log_{10}20\)

A. 2
B. 3
C. 4
D. 5

Question 5 :

• WAEC 2001

In a class of 80 students, every students studies Economics or Geography or both. If 65 students study Economics and 50 study Geography, how many study both subjects?

A. 15
B. 30
C. 35
D. 45