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maths question

if something increases by 15 % to 328 what was the number originally and how do you work this out, thanks

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I think

• divide 328 by 115

which is 2.852
and then multiply that by 100. which is.... 285.2

these are rounded down, obvs.

cheers!

• thanks everyone

im gonna fail bad on this numeracy test

• All you need to do if they ask you to find a what it was previouslyu

is divide by 1.whatever they ask so, 1.20 for 20%, 1.34 for 34%. to increase by the amount just times it by 1.whatever. Simple really, I think.

• The key steps to recognise (in this example):

a) "the original value" is to taken as 100%

b) the 328 value represents 115%

c) Dividing 328 (i.e. "the 115% value") by 115 gives "the 1% value".

d) To get the original number (i.e. "the 100% number"), multiply "the 1% value" by 100.

this is

• ^very good

you should be a maths teacher