WAEC Mathematics 2017 Objective — Question 5
Question 5 of 50 from the West African Examinations Council (WAEC) Mathematics 2017 Objective paper, with the correct answer and a full explanation.
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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?
- A. A. 1:4
- B. B. 1:5
- C. C. 2:5Correct
- D. D. 5:2
Explanation
Tunde:Ola=1:2, Ola:Musa=4:5. Since Tunde:Ola equivalently =1:2 or 2:4, Tunde:Ola:Musa=2:4:5, so Tunde:Musa=2:5.
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