MATHS WEEK 2015 - Day 3 Problems

Here are your challenges for Wednesday:

Junior Problem:

Sarah began earning pocket money by doing chores at home everyday. She was given $2 on her first day. Then she was given $3 every day after for a long time. How much money did she have after 2 weeks? If she spends half of that money on a toy how much will she have spent?

Senior Problem:

Mike aims to drink at least 3 litres of water a day to keep hydrated. On Monday he meets his goal, on Tuesday he drinks only half of this goal. On Wednesday he drinks 50% more than he did on Tuesday. How many litres of water did he drink on Wednesday?

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Students: Write your answer in the comment section with your name and class.

Teachers: If you have any photos of student thinking please email to Miss Breen 

Come back tomorrow for new challenges!
------------------------------------------------------ Here is some feedback and photos of Room 6 completing the senior question today:

Room 6 found the Senior problem very challenging – mainly due to the fact that a lot of us didn’t take the time to understand exactly what the question was asking us!

We figured out that half of 3 was 1.5, but a lot of us then doubled 1.5, because we thought 50% more meant two times as much!  One group decided that 50% of 1.5 was 0.75, so they added that to 1.5 to make 2.25, and we now think that is the correct answer.

Great problem, Miss Breen!