This week 1 of my maths task were to publish on my blogs 3 maths questions from Whaea Siniece and then solve it. Here is my one, I hope you like it!
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- Ruby ran for ⅖ of the distance in a cross country tournament. If she ran a further 600 metres, she would have completed ⅔ of the course. How many metres is the distance of the full run?
So we know that 2/3-2/5 of the full run is 600, so lets calculate the run!
2/3-2/5=10/15-6/15=4/15. So 4/15 of the whole run is 600m. 600:4=150. 150 x 15= 2250. Ans:2250m. - A bottle is 1/4 litres full. If you were to add 500ml of juice to the bottle, it would be 2/3 full. How many ml can that bottle hold if it is full? So we know that 2/3 – 1/4= 500 ml, so lets calculate! 2/3-1/4=8/12-3/12=5/12. So 500ml is 5/12 of that bottle. 500:5×12=1200. Ans-1200ml.
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- Samuel is celebrating his birthday. His family is going to buy him a scooter. Both the warehouse and Torpedo 7 are having a sale on scooters. The warehouse has a MADD scooter for $129 with 10% off. Torpedo 7 has the same scooter for $169 with 27% off.
Where should they buy the scooter from?
The price of the scooter in The Warehouse is: 129:10=12.9. 129 -12.9=116.1. Ans-116.1$
The price of the scooter in Torpedo 7 is: 100-27=73. 169:100=1.69. 1.69 x 73 = 123.37. Ans-123.37$ Samuel’s family should by the scooter at The Warehouse because it is cheaper.