Here's a GCSE question I saw in a 9-1 practice paper (I've changed it a bit). Any GCSE students want to give it a go?
John has some toy bricks. He has 300 red bricks, 300 green bricks and 300 blue bricks. He uses some of the bricks to build a model house. The number of red, green and blue bricks he uses are in the ratio 3 : 1 : 2.
When he has finished building the house, he has twice as many green bricks left as red bricks. How many blue bricks does John have left?
(No trial and error)
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Tricky 9-1 GCSE question for you all to try watch
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- 12-02-2017 12:35
- 12-02-2017 13:04
Moltenmo - a good one for you to tryLast edited by crashMATHS; 12-02-2017 at 13:05.