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WAEC WASSCE Mathematics 2002 past questions and answers

This 2002 WAEC WASSCE Mathematics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2002 set with instant marking.

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Sample WAEC WASSCE Mathematics 2002 questions

1. Convert 101101_2 to base ten.
  1. 43
  2. 45
  3. 46
  4. 47

Answer: B. 45

101101_2 equals 32 + 8 + 4 + 1, which is 45.

2. Evaluate 3^2 x 3^-1.
  1. 1
  2. 9
  3. 3
  4. 27

Answer: C. 3

When powers with the same base are multiplied, their indices add, so 3^(2-1) = 3.

3. Round 0.006784 to 2 significant figures.
  1. 0.0067
  2. 0.00678
  3. 0.0070
  4. 0.0068

Answer: D. 0.0068

The first two significant digits are 6 and 7, and the next digit 8 rounds the 7 up to 8.

4. Let U = {1,2,3,4,5,6,7,8,9,10}, A be the even numbers in U, and B be the prime numbers in U; how many elements are in A intersection B?
  1. 1
  2. 2
  3. 3
  4. 4

Answer: A. 1

The only number that is both even and prime is 2.

5. y varies directly as x, and y = 18 when x = 6; find y when x = 10.
  1. 24
  2. 30
  3. 36
  4. 108

Answer: B. 30

The constant of proportionality is 18/6 = 3, so y = 3 x 10 = 30.

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