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G S Rehill's Interactive Maths Software Series - "Building a Strong Foundation in Mathematics" from mathsteacher.com.au.

Order a 12-month Year 7 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 8 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 9 Interactive Maths software Homework Licence for only $19.95. Order a 12-month Year 10 Interactive Maths software Homework Licence for only $19.95.

Year 8 Interactive Maths - Second Edition


Rate Problems

Example 4

A water tank that holds 100 L is leaking at a rate of 2 L/min.  How long will it take to waste 24 L at this rate?

Solution:

So, it will take 12 minutes to waste 24 litres.


Alternative way:

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