Waec Model Questions Vol1 2023 Mathematics Question 49

Practice objective / multiple choice question 49 from the 2023 Waec Model Questions Vol1 Mathematics examination.

Waec Model Questions Vol1 2023 Mathematics Objective / Multiple Choice Medium Difficulty

Question 49 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • MATHEMATICS • objective

The time \(t\) (in hours) required to fill a tank varies directly as the volume \(V\) (in litres) and inversely as the rate \(r\) (in litres per hour). If it takes 5 hours to fill 300 L at a rate of 20 \(L/h\), how many hours will it take to fill 450 L at a rate of 30 \(L/h\)?

Answer Options

A. 7

B. 4

C. 6

Correct Answer D. 5

Correct Answer

Correct Option:

About This Question

This is Waec Model Questions Vol1 2023 Mathematics Question 49. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Mathematics examination.

Difficulty level: Medium .

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Waec Model Questions Vol1 2023 Mathematics Question 49

The time \(t\) (in hours) required to fill a tank varies directly as the volume \(V\) (in litres) and inversely as the rate \(r\) (in litres per hour). If it takes 5 hours to fill 300 L at a rate of 20 \(L/h\), how many hours will it take to fill 450 L at a rate of 30 \(L/h\)?

Answer Options

About This Question

Master the Exam!

The time \(t\) (in hours) required to fill a tank varies directly as the volume \(V\) (in litres) and inversely as the rate \(r\) (in litres per hour). If it takes 5 hours to fill 300 L at a rate of 20 \(L/h\), how many hours will it take to fill 450 L at a rate of 30 \(L/h\)?