GL Maths Pack 1 paper 1 (milkman & baker)

[Tulip]

Please could anyone help me on this sum !


A milkman and a baker deliver to the same house.

In a period of 28 days, the milkman calls every second day and the baker every third day.

They meet at the house twice in the first 7 days.

How many more times do they meet during the 4 week period ?

The answer is : 3 times


Please explain how to solve these type of questions.
Thank you.

[moved]

Write out the multiples of 2 and 3

2, 4, 6, ...
3, 6, ...

This tells us that they meet every 6 days.

If they met twice in the first week they both started on day 1 (Sunday) and met again on day 7 (Saturday).
In the subsequent week they must meet on day 6 (Friday).
In week three they would meet on day 5 (Thursday) and finally in week 4 they would meet on day 4 (Wednesday).

Many children are happiest with these if you write out the days of the week and then count on six each time.

[yoyo123]

I find a diagram helps with this sort of question

[WP]

http://www.elevenplusexams.co.uk/forum/ ... 76#p126376" onclick="window.open(this.href);return false;

Many of these questions have been asked before, and you can find the discussions using the Search function at the top of the page.

[Tulip]

Thanks everyone for the reply and it was a clear explanation!