Neco Model Questions Vol1 2020 Mathematics Question 24

Practice objective / multiple choice question 24 from the 2020 Neco Model Questions Vol1 Mathematics examination.

Neco Model Questions Vol1 2020 Mathematics Objective / Multiple Choice Hard Difficulty
Question 24 NECO_MODEL_QUESTIONS_VOL1 • 2020 • MATHEMATICS • objective

A rectangular garden is to be fenced with 120 m of fencing. Its length \(L\) is twice its width \(W\). Inside the garden a uniform path of width \(w\) is built along all four sides, leaving a central rectangular lawn. If the area of the lawn is exactly half the area of the whole garden, find the width \(w\) of the path (express your answer in simplest exact form).

Answer Options

A. 15 + 5\sqrt{5}
B. 10 - 5\sqrt{5}
C. 5\sqrt{5} - 15
Correct Answer D. 15 - 5\sqrt{5}
Correct Answer
D
Correct Option:
15 - 5\sqrt{5}

About This Question

This is Neco Model Questions Vol1 2020 Mathematics Question 24. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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