WAEC (WASSCE) Mathematics · Number and Numeration

Ratio, Proportions, and Rates: WAEC Mathematics Past Questions and Answers

What the WAEC syllabus covers in Ratio, Proportions, and Rates

Our summary: Comparing quantities, sharing them in proportion, and working with rates such as speed, tax and exchange.

  • Ratio between two similar quantities. Proportion between two or more similar quantities.
  • Financial partnerships, rates of work, costs, taxes, foreign exchange, density (e.g. population), mass, distance, time, and speed.

Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).

WAEC (WASSCE) Mathematics questions on Ratio, Proportions, and Rates

  1. WAEC 2024A piece of rod of length 44 m is cut to form a rectangular shape such that the ratio of the length to the breadth is 7: 4. Find the breath.
  2. WAEC 2024Gifty, Justina, and Frank shared 60 oranges in the ratio 5: 3: 7 respectively. How many oranges did Justina receive?
  3. WAEC 2023m:n = 21/3 : 11/5 and n : q = 11/2 : 11/3 , find q : m.
  4. WAEC 2022A trader made a loss of 15% when an article was sold. Find the ratio of the selling price : cost price
  5. WAEC 2022Three boys shared D 10,500.00 in the ratio 6:7:8. Find the largest share.
  6. WAEC 2021A trader paid import duty of 38 kobo in the naira on the cost of an engine. If a total of 22,800.00 was paid as import duty, calculate the cost of the engine.
  7. WAEC 2021A cyclist moved at a speed of Xkm/h for 2 hours. He then increased his speed by 2 km/h for the next 3 hours. If the total distance covered is 36 km, calculate…
  8. WAEC 2020Two buses start from the same station at 9.00am and travel in opposite directions along the same straight road. The first bus travel at a speed of 72 km/h and…
  9. WAEC 2019If m : n = 2 : 1, evaluate 3m^2 - 2n^2/m^2 + mn
  10. WAEC 2018If x : y : z = 3 : 3 : 4, evaluate 9x + 3y/6z - 2y
  11. WAEC 2018If x : y = 1/4 : 3/8 and y : z = 1/3 : 4/9 , find x : z
  12. WAEC 2017Water flows out of a pipe at a rate of 40 cm^2 per seconds into an empty cylinder container of base radius 4cm. Find the height of water in the container after…
  13. WAEC 2017The ages of Tunde and Ola are in the ratio 1:2. If the ratio of Ola's age to Musa's age is 4:5, what is the ratio of Tunde's age to Musa's age?
  14. WAEC 2016Kweku walked 8m up to slope and was 3m above the ground. If he walks 12m further up the slope, how far above the ground will he be?
  15. WAEC 2015A trader bought an engine for 15,000.00 outside Nigeria. If the exchange rate is 0.075 to N1.00, how much did the engine cost in Naira?
  16. WAEC 2014If x : y = 3 : 2 and y : z = 5 : 4, find the value of x in the ratio x : y : z
  17. WAEC 2013The distance between two towns is 50km. It is represented on a map by 5cm. Find the scale used
  18. WAEC 2012Mr. Manu travelled from Accra to Pamfokromb a distance of 720km in 8 hours. What will be his speed in m/s?
  19. WAEC 2012In 1995, the enrollment of two schools X and Y were 1,050 and 1,190 respectively. Find the ration of the enrollments of X and Y
  20. WAEC 2011If N112.00 exchanges for D14.95, calculate the value of D1.00 in naira
  21. WAEC 2010A car uses one litre of petrol for every 14km. If one of petrol cost N63.00, how far can the car go with N900.00 worth of petrol?
  22. WAEC 2010If x km/h = y m/s, then y =

Years with Ratio, Proportions, and Rates questions in DeeepSolve's question bank

From the past questions DeeepSolve holds, not a count of everything the exam body has set.

  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010