IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => Subject Doubts => IGCSE/ GCSE => Math => Topic started by: sameer210394 on October 27, 2009, 04:33:05 pm
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A cylindrical glass has a radius of 4 cm and a height of 6 cm.
A large cylindrical jar full of water is a similar shape to the glass.
The glass can be filled with water from the jar exactly 216 times.
Work out the radius and height of the jar.
i got the answers as r = 24 & h=36
but the mark scheme says the answer is r=14, h=42.
wat is the method to solve it correctly.
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A cylindrical glass has a radius of 4 cm and a height of 6 cm.
A large cylindrical jar full of water is a similar shape to the glass.
The glass can be filled with water from the jar exactly 216 times.
Work out the radius and height of the jar.
i got the answers as r = 24 & h=36
but the mark scheme says the answer is r=14, h=42.
wat is the method to solve it correctly.
The volume of the har is 216 times the volume of the glass
so all the lengths on the hjar are cube root(216)=6 times the lengths on the glass
radius is 24 and height=36
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I saw this question before. Which papaer is it from?
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A cylindrical glass has a radius of 4 cm and a height of 6 cm.
A large cylindrical jar full of water is a similar shape to the glass.
The glass can be filled with water from the jar exactly 216 times.
Work out the radius and height of the jar.
i got the answers as r = 24 & h=36
but the mark scheme says the answer is r=14, h=42.
wat is the method to solve it correctly.
ur ans. is correct acc. 2 me. u must hav seen d wrong mark scheme.
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I saw this question before. Which papaer is it from?
maths paper 2 may/june- question 10)
0580/22/M/J/08
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check d ms again its 24 nd 36 ...
u hav checked d mark scheme of first variant . while ur doin second variant
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ur ans. is correct acc. 2 me. u must hav seen d wrong mark scheme.
o yehh... i saw variant 1 my bad...
Thanks any ways...
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manbir v r doing d second variant na??
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ya .. 0580/22
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ya .. 0590/22
0580/22/O/N/09
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ya .. 0590/22
so all u guys ready to get your A* in Maths - ;)
i think this time too the global topper will be from india, last paper it was a girl from bangalore...
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kinda hoping for it ....
but dat depends on d pprs we get ...
Best of luck !!
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so all u guys ready to get your A* in Maths - ;)
i think this time too the global topper will be from india, last paper it was a girl from bangalore...
I wonder how do they decide global topper as there can be more than 1 for maths ??? ???
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Global topper was the person with the highest mark? There must be quite a few with 100%
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Global topper was the person with the highest mark? There must be quite a few with 100%
ya, that's what...how do they decide whoz gonna b d topper?
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Global topper was the person with the highest mark? There must be quite a few with 100%
a lot of them in fact.
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i guess its shared ??
quote - Aarti Reddy and Aditya Dev Gupta shared the top spot in Economics with A*s in 10 subjects.
taken from -
http://www.free-press-release.com/news-students-of-the-international-school-bangalore-emerge-toppers-at-cambridge-igcse-1254802099.html
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I wonder how do they decide global topper as there can be more than 1 for maths ??? ???
ya i know
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x2-6x+10 is to be written in the form (x-p)2 +q
Find p and q
Plz helpppp..... :( :)
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p= 3
q= 1
cuz,
x2 - 6x + 10
=> x2 - 6x + 9 - 9 +10
=> (x-3)2 - 9 +10
=> (x-3)2 + 1
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x2-6x+10 is to be written in the form (x-p)2 +q
Find p and q
Plz helpppp..... :( :)
completing the square
(x-3)2 +1
p=3
q=1
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:) :)
p= 3
q= 1
cuz,
x2 - 6x + 10
=> x2 - 6x + 9 - 9 +10
=> (x-3)2 - 9 +10
=> (x-3)2 + 1
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hey i guess this is add. math question
i havent seen any in books or papers
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I wonder how do they decide global topper as there can be more than 1 for maths ??? ???
The presentation of their work... 100% marks is not enough, you gotta be clear... precise... well-presented work... neatness... There are other criteria.
Here in MU last year, we had 10 with 100%... I don't know if there was even a topper. LOL
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hm..!!
add. math mein 100% is i guess not possible!
it can be achieved by some born geniouses!!
as some do not eve finish their paper on time!!!
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hm..!!
add. math mein 100% is i guess not possible!
it can be achieved by some born geniouses!!
as some do not eve finish their paper on time!!!
not impossible..if v get comparitively easy paper....its not difficult to get 100%
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Be positive shrey!!!
nd yeah aadi check out the chit chat section for our company's official advertisement!!!
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hmm..
adi i guess you telling me to be positivE!!!
i am always positive!!
this needs nothing other than practise!!
as practise makes a man perfect!!
but no man is perfect so why practise??? :P :P
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its not no man
its like" nobody is perfect....and i am nobody"
hahaha....back with EADA
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shu... shu shu!!!!
get lost fomr her
dont polute this stuff!!
go do it in EADA thread!!
go..
quick!!
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hm..!!
add. math mein 100% is i guess not possible!
it can be achieved by some born geniouses!!
as some do not eve finish their paper on time!!!
Nothing is impossible... Everything is possible!!! :D
8 students got 100% in Add Maths last year...
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y a i know
ti is commonly said....
impossible is nothing cause impossible itself says i m possible!!!