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NECO SSCE Mathematics 2021 past questions and answers

This 2021 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 2021 set with instant marking.

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Sample NECO SSCE Mathematics 2021 questions

1. A sum of ₦84,000 is shared among three people in the ratio 2:5:7. How much does the person with 5 parts receive?
  1. ₦12,000
  2. ₦24,000
  3. ₦30,000
  4. ₦42,000

Answer: C. ₦30,000

The total number of parts is 14, so each part is ₦84,000/14 = ₦6,000 and five parts equal ₦30,000.

2. Find the simple interest on ₦25,000 invested at 8% per annum for 3 years.
  1. ₦5,000
  2. ₦6,000
  3. ₦6,500
  4. ₦8,000

Answer: B. ₦6,000

Simple interest is PRT/100 = 25,000 x 8 x 3/100 = ₦6,000.

3. A trader adds VAT at 7.5% to an item costing ₦48,000 before VAT. How much VAT is added?
  1. ₦3,600
  2. ₦3,200
  3. ₦4,000
  4. ₦7,500

Answer: A. ₦3,600

The VAT is 0.075 x ₦48,000 = ₦3,600.

4. Express 0.000684 in standard form.
  1. 6.84 x 10^-3
  2. 6.84 x 10^4
  3. 68.4 x 10^-5
  4. 6.84 x 10^-4

Answer: D. 6.84 x 10^-4

Moving the decimal point four places to the right gives 6.84, so the power is 10^-4.

5. What is 243 in base five expressed in base ten?
  1. 63
  2. 69
  3. 73
  4. 83

Answer: C. 73

243 in base five equals 2 x 25 + 4 x 5 + 3 = 73 in base ten.

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