Waec Model Questions Vol1 2021 Mathematics Question 16

Practice objective / multiple choice question 16 from the 2021 Waec Model Questions Vol1 Mathematics examination.

Waec Model Questions Vol1 2021 Mathematics Objective / Multiple Choice Medium Difficulty
Question 16 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • MATHEMATICS • objective

A quantity y varies directly as the square of x and inversely as (x+2). When x = 4, y = 48. Find the value of x when y = 108. Give your answer in simplest exact form.

Answer Options

A. 5+\sqrt{21}
B. 3+\sqrt{20}
Correct Answer C. 3+\sqrt{21}
D. 3-\sqrt{21}
Correct Answer
C
Correct Option:
3+\sqrt{21}

About This Question

This is Waec Model Questions Vol1 2021 Mathematics Question 16. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Mathematics examination.

Difficulty level: Medium .

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