WAEC Mathematics 2018 Objective — Question 10
Question 10 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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If x : y : z = 2 : 3 : 4, evaluate (9x+3y)/(6z−2y)
- A. 1½Correct
- B. 2
- C. 2½
- D. 3
Explanation
Let x=2k, y=3k, z=4k: (18k+9k)/(24k−6k)=27k/18k=3/2=1½.
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