Quant - 2006

[aashima]

Well CEans time to get started. We'll have our Quantitative Analysis questions of the CAT - 2006 in this thread. Lets see whether the CEans find it easy or difficult to solve them. All the best.

[aashima]

Here goes the first question.
Ques 1: If a/b = 1/3, b/c = 2, c/d = 1/2, d/e = 3 and e/f = 1/4, then what is the value of abc/def ?

(1) 3/8
(2) 27/8
(3) 3/4
(4) 27/4
(5) 1/4

[Neha]

Originally Posted by aashima

Here goes the first question.
Ques 1: If a/b = 1/3, b/c = 2, c/d = 1/2, d/e = 3 and e/f = 1/4, then what is the value of abc/def ?

(1) 3/8
(2) 27/8
(3) 3/4
(4) 27/4
(5) 1/4

My answer to this question would be option 1 i.e 3/8..right??

[aashima]

Originally Posted by Neha

My answer to this question would be option 1 i.e 3/8..right??

Lets others also try Neha. Between try to add your explanations as well with the answers.

[Neha]

Originally Posted by aashima

Lets others also try Neha. Between try to add your explanations as well with the answers.

Sure!!

I'll post the explanation when others have replied.

[Mahesh]

Hi Neha,

My answer is also 3/8.can I give explanation or give others also a try?

[aashima]

Do we have any more takers for this??? I expected a good response from CEans on this!

[reachrkata]

May be many thought, OK the problem is simple. And it is in fact so. The actual quant stuff in CAT which is a head ache is the Speed-distance-time part and Work related problems.

Anyway answer is 3/8 as all of you would have got.

Explanation : Sorry, I am usurping someone's wish to post the explanation.
here goes -
a/d = a/b*b/c*c/d = 1/3*2*1/2 = 1/3
b/e = b/c*c/d*d/e = 2*1/2*3 = 3
c/f = c/d*d/e*e/f = 1/2*3*1/4 = 3/8

abc/def = a/d*b/e*c/f = 1/3*3*3/8 = 3/8

Simple right?

Anyway, let me take this opportunity to propose something.
May be people who gave their CAT exams this year, can post in questions to which they couldn't find answers. And we others here can exercise our brains to find the solution.

What do the others say?

[The_Big_K]

Nice Idea. Aashima has already taken an initiative to start the related threads. CAT takers may put the difficult questions in these threads.

Way to go, Guys!

-The Big K-

[aashima]

Originally Posted by reachrkata

Explanation : Sorry, I am usurping someone's wish to post the explanation.

No problems with that Reachrkata, besides answering correctly, answering in minimum possible time is also a factor that counts. So everybody should come up with the explanation.