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WAEC WASSCE Mathematics 2019 past questions and answers

This 2019 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 2019 set with instant marking.

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Sample WAEC WASSCE Mathematics 2019 questions

1. Express 101101_2 as a base ten numeral.
  1. 43
  2. 45
  3. 46
  4. 53

Answer: B. 45

101101_2 = 1(32) + 0(16) + 1(8) + 1(4) + 0(2) + 1 = 45.

2. Evaluate log_10(0.004).
  1. -2.398
  2. -1.602
  3. 2.602
  4. -2.602

Answer: A. -2.398

Since 0.004 = 4 x 10^-3, its logarithm is log_10(4) - 3, approximately -2.398.

3. In a group of 50 students, 28 study French, 24 study Hausa and 10 study neither; how many study both languages?
  1. 16
  2. 10
  3. 14
  4. 12

Answer: D. 12

The number studying at least one is 50 - 10 = 40, so the intersection is 28 + 24 - 40 = 12.

4. Simplify (sqrt(12) + sqrt(27))/sqrt(3).
  1. 3
  2. 4
  3. 5
  4. 6

Answer: C. 5

sqrt(12) = 2sqrt(3) and sqrt(27) = 3sqrt(3), so their sum divided by sqrt(3) is 5.

5. The first term of an arithmetic progression is 7 and its common difference is 4; find the 12th term.
  1. 47
  2. 59
  3. 55
  4. 51

Answer: D. 51

The 12th term is 7 + (12 - 1)4 = 51.

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