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marks in all three

by sanju09 » Tue Mar 31, 2009 3:27 am
The marks scored by a student in three subjects are in the ratio of 4:5:6. If the candidate scored an overall aggregate of 60% of the sum of the maximum marks and maximum marks in all three subjects is the same, in how many subjects did he score more than 60%?

A. 1
B. 2
C. 3
D. None of the subjects
E. It cannot be determined by the information given
The mind is everything. What you think you become. -Lord Buddha



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Re: marks in all three

by Morgoth » Tue Mar 31, 2009 3:38 am
sanju09 wrote:The marks scored by a student in three subjects are in the ratio of 4:5:6. If the candidate scored an overall aggregate of 60% of the sum of the maximum marks and maximum marks in all three subjects is the same, in how many subjects did he score more than 60%?

A. 1
B. 2
C. 3
D. None of the subjects
E. It cannot be determined by the information given
(4s + 5s + 6s) = 60% of maximum marks

let maximum marks be 100


(4s + 5s + 6s) = 60/100 * 300


15s = 60*3

s = 12


4s = 48
5s = 60
6s = 72

I think the answer should be 1, i am also not sure about the aggregate part.

OA?
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by sanju09 » Tue Mar 31, 2009 3:45 am
bingo!!!
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
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The Princeton Review - Manya Abroad
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