Section I - Multiple Choice (3 Viewers)

[BlueCatBulletCD]

Apart from your mistake with 16, I made 2 mistakes with 7 and 14..
I agree with every one of your answers EXCEPT i'm not sure on 15? I got A.


EDIT: Damn, just looked through everyone elses answers and they all got D for 15. So if me and you are correct with the rest, you should get 21/22 and i should get 19/22.. Lets hope

Ok sweet And yeah I'm pretty sure 15 is D. You have to have the square root over the whole number, not just the numerator.

 

[savio23q]

Can someone please scan the MCQ and post it up?

 

[sadcase]

Wasn't question 19 actually D. Because the total radius is 12 and the height is 24. Hence, Pie time 12 squared times 24= 10857cm cubed.
please share ur solution

 

[jamesjoker]

Wasn't question 19 actually D. Because the total radius is 12 and the height is 24. Hence, Pie time 12 squared times 24= 10857cm cubed.
please share ur solution

the formula is [pie x "radius(squared)" x height"

12 is the "diameter" not the "radius"

so the solution was v= pie x 6 (squared) x 24
= 2714cm (cubed)

 

[sadcase]

Yes ok but there were two spheres each with radius 6. so when you look at the question again, the middle of the cylinder has a radius if 12. not 6

 

[jamesjoker]

Yes ok but there were two spheres each with radius 6. so when you look at the question again, the middle of the cylinder has a radius if 12. not 6

na, lol... i'm 100% sure im right