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NECO SSCE Mathematics 2017 past questions and answers

This 2017 NECO SSCE 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 2017 set with instant marking.

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Sample NECO SSCE Mathematics 2017 questions

1. Express 101101 in base 2 as a number in base 10.
  1. 43
  2. 45
  3. 46
  4. 41

Answer: B. 45

The binary place values give 32 + 8 + 4 + 1 = 45.

2. A sum of 64,000 naira is shared in the ratio 3:5; how much is the smaller share?
  1. 24,000 naira
  2. 40,000 naira
  3. 32,000 naira
  4. 20,000 naira

Answer: A. 24,000 naira

The smaller share is 3/8 of 64,000, which is 24,000 naira.

3. Write 0.00072 in standard form.
  1. 7.2 x 10^-3
  2. 7.2 x 10^-5
  3. 7.2 x 10^-4
  4. 72 x 10^-4

Answer: C. 7.2 x 10^-4

Moving the decimal point four places to the right gives 7.2 x 10^-4.

4. Find the least common multiple of 12, 18 and 30.
  1. 90
  2. 120
  3. 360
  4. 180

Answer: D. 180

The highest required prime powers are 2^2, 3^2 and 5, whose product is 180.

5. A school bag marked at 24,000 naira is sold at a discount of 15%; what is its selling price?
  1. 20,400 naira
  2. 21,600 naira
  3. 20,600 naira
  4. 21,000 naira

Answer: A. 20,400 naira

The discount is 0.15 x 24,000 = 3,600 naira, leaving 20,400 naira.

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