Igcse Model Questions Vol1 2019 Mathematics Question 17

Practice objective / multiple choice question 17 from the 2019 Igcse Model Questions Vol1 Mathematics examination.

Igcse Model Questions Vol1 2019 Mathematics Objective / Multiple Choice Medium Difficulty
Question 17 IGCSE_MODEL_QUESTIONS_VOL1 • 2019 • MATHEMATICS • objective

The time \(t\) (in minutes) taken to fill a tank varies directly as the volume \(V\) (in litres) and inversely as the square of the pump speed \(s\) (in litres per minute). If it takes 12 minutes to fill a 180‑litre tank with a pump speed of 6 L min\(^{-1}\), how long will it take to fill a 300‑litre tank with a pump speed of 9 L min\(^{-1}\)? Give your answer to one decimal place.

Answer Options

A. 7.2
Correct Answer B. 8.9
C. 9.5
D. 10.0
Correct Answer
B
Correct Option:
8.9

About This Question

This is Igcse Model Questions Vol1 2019 Mathematics Question 17. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Mathematics examination.

Difficulty level: Medium .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support