Number-Gus vs Mitsi

Mr Corney loves driving his big 4WD which his kids call 'Gus'. With the lower price of diesel, he thinks that it is cheaper to run than his wife's car, a little shopping cart that your Nana would drive called 'Mitsi'. His wife is very cost conscious and insists that Mr Corney drive to school in 'Mitsi'. Mr Corney wants to 'prove' to his wife that it is cheaper to drive 'Gus'.  Maybe it is even cheaper for him to go by bus? 

Your mission - get the relevant info, crunch the numbers and communicate your findings.

Info you may need:

This distance Mr Corney travels  from home to school = 20 km. (You can assume he commutes to school and back five times each week.)

Suggestions for working:

Sentence starters

• Mr Corney wants to find out .....

• The questions we need to find answers are .......

• We will have to calculate ......

• To calculate fuel efficiency/distance travelled/whatever we....

• The units for this calculation are....

• Overall, we found that....

Other info you may need:

Mitsi: Registration number - JDE792

Fuel efficiency :6.1 L per 100km (source EECA energywise)

Cost of 91 Petrol: $1.60 per L in 2021 (check current price on Gaspy)

Gus: Registration number - ARL499

Fuel efficiency :12.6 L per 100km (source EECA energywise)

Cost of Diesel: $0.80 per L in 2021 (check current price on Gaspy)

Road user charges: $76 per 1000km (source NZTA)

Hint - check out the Car Jam website to get a computer to work out the running costs.