Year 7 Interactive Maths - Second Edition

Problem Solving Unit

Problem 14.1  Number of Cars

If a petrol pump contains enough petrol to supply 90 cars with 40 litres of petrol each, find the number of cars that can each be supplied with 45 litres.

Problem 14.2  Larger or Smaller

Problem 14.3  Same Rate of Speed

It takes a woman one hour to dig a pond 2 m long, 2 m wide, and 2 m deep.  How long would it take the same woman to dig a pond 6 m long, 6 m wide and 6 m deep?  Assume that she digs at the same rate of speed.