[shashank3012]

Originally Posted by Unhappy_Demon

CAT 2008 solution . here is the solution provided ...need explanation in that .....do you have better solution ?



Charlie got calls from two colleges. What could be the minimum marks obtained by him in a section?

for 2 colleges,exactly,he cleared all cutoffs

here,we go horizontal

he gets in to the lowest 2 colleges on the show.as only the aggregate marks of all colleges are known,Charlie cannot be admitted certainly,if he does not clear the overall cutoff of 4 of the institutes.

maximum aggregate would be 175.

so,his scores can be 50,50,50,25

so,i would go with 25.

option (3)

what is the official answer??

[Unhappy_Demon]

yes....OA is 25 indeed .....correct answer.

I am adding my understanding on your solution and also have put a question below for you.

Originally Posted by shashank3012

for 2 colleges,exactly,he cleared all cutoffs

here,we go horizontal

he gets in to the lowest 2 colleges on the show.as only the aggregate marks of all colleges are known,Charlie cannot be admitted certainly,if he does not clear the overall cutoff of 4 of the institutes.

OK.....we know all the aggregate cut-off marks given in the table and they are 176,175,171,178,180,176 in fact

maximum aggregate would be 175. why 175 ?i believe if charlie scores 175 then he is basically crossing aggregate cut-off for college 3 (171) and touching aggregate cut-off for college 2(175) .....so he can get into college 2 and college 3 peacefully . but we need to be sure that he maintains sectional cut-off for these colleges

so,his scores can be 50,50,50,25 How do you get this distribution ? can you please explain this part ? we already have seen that he should get aggregate score of 175 to get into college 2 and college 3 . i understand 175 =50+50+50+25 ......but did you go by options or you got this distribution some other way ? because there could have been other distribution as well .....is not it ?

so,i would go with 25.

option (3)

what is the official answer??

[shashank3012]

Originally Posted by Unhappy_Demon

yes....OA is 25 indeed .....correct answer.

I am adding my understanding on your solution and also have put a question below for you.

1) why 175 ?i believe if charlie scores 175 then he is basically crossing aggregate cut-off for college 3 (171) and touching aggregate cut-off for college 2(175) .....so he can get into college 2 and college 3 peacefully . but we need to be sure that he maintains sectional cut-off for these colleges

as he scores 175,even if he clears all cutoffs in other colleges,he will be denied admission due to non fulfillment of the overall cutoff criteria.

2)How do you get this distribution ? can you please explain this part ? we already have seen that he should get aggregate score of 175 to get into college 2 and college 3 . i understand 175 =50+50+50+25 ......but did you go by options or you got this distribution some other way ? because there could have been other distribution as well .....is not it ?

the blank spaces given are not meant to be filled.there are no cutoffs mentioned.so,i assumed that,the cutoff for these colleges is 0.
so,to minimize 1 score,i have to maximize the other three.
hence the 50,50,50,25 part.they have asked for the minimum value for 1 subject,without any other conditions applying.so,i thought on those lines.

hope that helps

P.S. no. 600

[raghav507]

hi puys,
please continue here...
http://www.pagalguy.com/forum/quanti...di-thread.html (CAT 2009 LR-DI Thread)