WAEC Mathematics questions: Fractions, decimals, approximations and percentages

29 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Fractions, decimals, approximations and percentages· WAEC

   Share ₦4,500 between Ada and Bola in the ratio 2 : 3. Find Bola's share.

   • A₦1,800
   • B₦3,000
   • C₦2,250
   • D₦2,700

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   Explanation and discussion

2. Question 22· Fractions, decimals, approximations and percentages· WAEC

   Evaluate 0.25 × 0.4 ÷ 0.02.

   • A5
   • B0.5
   • C50
   • D0.05

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   Explanation and discussion

3. Question 23· Fractions, decimals, approximations and percentages· WAEC

   Find the amount after 2 years when ₦10,000 is invested at 10% per annum compound interest.

   • A₦11,000
   • B₦12,000
   • C₦12,100
   • D₦12,210

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   Explanation and discussion

4. Question 24· Fractions, decimals, approximations and percentages· WAEC

   Express 3/8 as a percentage.

   • A38%
   • B37.5%
   • C30.8%
   • D3.75%

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   Explanation and discussion

5. Question 25· Fractions, decimals, approximations and percentages· WAEC

   Divide ₦36,000 among Ada, Bola and Chidi in the ratio 2 : 3 : 4. Bola's share is

   • A₦16,000
   • B₦8,000
   • C₦12,000
   • D₦9,000

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   Explanation and discussion

6. Question 26· Fractions, decimals, approximations and percentages· WAEC

   Find the simple interest on ₦45,000 for 4 years at 6% per annum.

   • A₦10,800
   • B₦2,700
   • C₦12,000
   • D₦9,600

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7. Question 27· Fractions, decimals, approximations and percentages· WAEC

   The price of a shirt is reduced by 20% to ₦4,800. The original price was

   • A₦6,400
   • B₦5,760
   • C₦5,600
   • D₦6,000

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8. Question 28· Fractions, decimals, approximations and percentages· WAEC

   Write 0.0000306 in standard form.

   • A3.06 × 10⁻⁵
   • B3.06 × 10⁻⁶
   • C3.6 × 10⁻⁵
   • D3.06 × 10⁵

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9. Question 29· Fractions, decimals, approximations and percentages· WAEC

   Simplify 1 3/4 + 2 1/3.

   • A4 1/12
   • B3 4/7
   • C4 1/7
   • D3 1/12

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   Explanation and discussion