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WAEC Mathematics 2017 Question 5

Question 5

Ratio, Percentages and Rates

The 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?

  1. A.1:4
  2. B.1:5
  3. C.2:5
  4. D.5:2
Show the answer and explanation

Answer: C (2:5)

Explanation

Tunde : Ola = 4 : 8 and Ola : Musa = 8 : 10, so Tunde : Musa = 4 : 10 = 2 : 5.