Hi,

Thank you for sharing, I am trying to learn how to interpret what is really asked in this questions.
I would like to understand how you could interpret context of "ALL" from this question. Could you please share?
This question says that "Diane completed "EACH" of her exercise sets in 75 seconds, and rested for 55 seconds BETWEEN the exercise sets, so it seems to be

Number of exercise sets : A
rest between exercise sets : A-1 , A >=2

The ratio of the amount of time it took her to complete AN exercise set to the amount of time she rested between the sets?

75 : 55 x (A-1)
15: 11 x (A-1)

If I see the answer options, left item should be either of 1,3,5,15, so answer options will be A) or B).
If I put 2,3,4 to A, the ratio will be

In case A is 2 , 15: 11 x (A-1) = 15:11 x 1 = 15:11
In case A is 3 , 15: 11 x (A-1) = 15:11 x 2 = 15:22 -> At this point we can eliminate A) from answer.
In case A is 4 , 15: 11 x (A-1) = 15:11 x 3 = 15:33 =5:11

So answer is B:

This is how I interpret this question but do I miss something ?

Best Regards,
Gocha

Number of exercise sets : A
rest between exercise sets : A-1 , A >=2

The ratio of the amount of time it took her to complete an exercise set to the amount of time she rested between the sets can be expressed in below.

75 : 55 x (A-1)
15: 11 x (A-1)

If I see the answer options, left item should be either of 1,3,5,15, so answer options will be A) or B).
If I put 2,3,4 to A, the ratio will be

In case A is 2 , 15: 11 x (A-1) = 15:11 x 1 = 15:11
In case A is 3 , 15: 11 x (A-1) = 15:11 x 2 = 15:22 -> At this point we can eliminate A) from answer.
In case A is 4 , 15: 11 x (A-1) = 15:11 x 3 = 15:33 =5:11

So answer is B:

Gocha

I still did not get. what is A-1? why are we even calculating that when the perfect ratio is 15:11?

Hi AjanthaJ,

I may be wrong as I am neither an expert nor native English speaker.
As far as I understand this question,



We should compare

A) "The amount of time it took her to complete "AN" exercise set"
to
B) "the amount of time she rested between the sets."

If I understand this question correctly A) is simply 75 seconds.
For B), I think it asks sum of time among rests. (Again, I may be wrong.)

For example :
Case 1) 3 exercises : A=3, number of exercises, A-1=2, number of rests.
E1 , R1, E2, R2, E3

Case 2) 2 exercises : A=2, number of exercises, A-1=1, number of rests.
E1 , R1, E2

Above is the background how I calculated, but not sure to be honest.
Hope this helps.

Best,
Gocha

Correct.

Gocha

thanks for the explanation.

Its just the Word Play;
Diane completed each of her exercise sets in 75 seconds: means she completed all sets in 75 seconds

If you get this, then all you need is to divide 75 by Resting time
75/55 , 75/110, 75/165, 75/220, ......
15/11, 15/22, 5/11, 15/44, ......

We have a match: 5/11
Hence, Option B

Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.