Friday, 24 July 2015
You choose!
There are 3 problems today - each with a different level of difficulty. How many can you do?
Thursday, 2 July 2015
Sunday, 28 June 2015
Wednesday, 24 June 2015
Tuesday, 23 June 2015
Friday, 19 June 2015
Tim's trip................
Solution
The trip to grandma’s takes 30 minutes. (If he were travelling at 7kph he would take an hour. Travelling at twice that speed halves the time.) This means that the home trip takes a third of an hour or 20 minutes. Tim’s total travelling time is therefore 50 minutes. If he spends 10 minutes with grandma he can still get home to watch his favourite programme.
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