Ratios?! (1 Viewer)

[Chloe238]

Just a quick question.

Say you calculate the ratio and it comes up as 1.299422 for example. In my textbook, its saying the ratio would be 1.2 rounded, but I thought it would of been 1.3 rounded because of the 9 after the 2.

Which way is corrected? Would you lose marks depending on which way?

Thanks

 

[katefication]

Perhaps the textbook has a mistake in it?

 

[MadGold777]

This was aslo the case in the 2011 independent trials.
The answer was 1.647.....
So i rounded it up and when i looked at the answer in marking guidlines it said the correct answer is 1.64!!

 

[littlemonster24]

I actually asked my teacher about that and she said you don't need to round it up but if you do make sure you show working.
But i don't think i'm going to round up.

 

[krnofdrg]

Just show working and maybe a few decimal points it would be correct still!

 

[Chloe238]

alright, i dont thinnk ill round it up then. Thanks heaps

 

[determine]

you should always report ratios to 2 decimal places.

 

[Chloe238]

you should always report ratios to 2 decimal places.

oh ok thank you sorry business is my worst subject haha mainly cos I hate it

 

[determine]

oh ok thank you sorry business is my worst subject haha mainly cos I hate it

that's okay! hopefully my tip gives you an extra mark