Neco Model Questions Vol1 2022 Mathematics Question 11
Practice objective / multiple choice question 11 from the 2022 Neco Model Questions Vol1 Mathematics examination.
The time (T) (in minutes) taken to fill a tank varies directly with the volume (V) (in litres) and inversely with the flow rate (r) (in litres per minute). When a 500‑L tank is filled at a flow rate of (25\ \text{L min}^{-1}\), it takes 20 minutes. The pump is then upgraded, increasing the flow rate by 20 %. Using the same constant of variation, how long will it now take to fill a 750‑L tank?
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About This Question
This is Neco Model Questions Vol1 2022 Mathematics Question 11. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
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