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March 3, 2015

March 3, 2015

Posted by **Grace** on Thursday, March 1, 2012 at 1:03pm.

- Math -
**David Q/R**, Saturday, March 3, 2012 at 4:22pmOne quarter passed with an A - so that's 24/4 = 6. Twelve of them passed with a B - and that can't include any who passed with an A, so that's a total of 12 plus 6 = 18. Assuming that it's only possible to pass with either an A or a B, that's 18/24 = 3/4 = 75%. But note that the question doesn't actually SAY that a pupil will fail the test if he/she got any other grade - that's an assumption that we've made - and in maths, it's not a good idea to make assumptions without stating what they are, so you might want to mention that - just in case it's a trick question!

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