This weeks maths blog is based on my maths problem solving for the week. This week for Problem solving it was on Ratios.
The first question is Using the image above, what is the ratio between the pedal gear and sprocket? If you were to turn the crank 9 full rotations how many revolutions would the wheel do?
I was partners with Maia and we got, 27, all we did was times 3x9=27
Second question, If one rotation of the pedal gear moves the bike 150cm, how far will the bike travel around the track if you did 5 full rotations of the pedal gear.
Me and Maia got 750cm by doing 150x8=750
Third question is There are currently three big tree stumps sitting in the way of where the bike track will go the stump removal company have quoted $253 to get the three tree stumps removed.they are currently running a special of 20% off stump removal for the next week. If we book in during this time.
Me and Maia got that they would save 50$, how? we did 25.3 is 10% and we are trying to get to tweenty we need to double it so double 25.3 it is 50.6
Thanks for listing.
Would you figure these questions out in any different way?
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