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Maths, Addmaths and Statistics: Post your doubts here!

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I wrote 41. It was either 40 or 41. I didn't have the time atm (first time ever I lost out on time management). How can there be 40.5 people?

But the answer to that part was 16.5 + 24..
Why not give the exact estimate?
I had a feeling we had to round up or down, but i thought it would make the estimate inaccurate or something.

This is what i did:

upload_2014-5-29_12-29-12.png
 
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That's no trick lol. They clearly mentioned in BOLD that we should find area of unshaded part.
I know but it was alos for 3 marks
So people in a jiffy found the area of the arc (1 mark), subtracted the area of the triangle from it (1 mark), and then the answer (1 mark)
I too was about to do the same, but Alhamdulillah, I did not :D
 
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