Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Prof, D is quite possible if we put in more time on figuring out what the other #s can be.. but can you explain the steps how you got it or did you just make an intellectual guess ( which we know you are very good at)

Statement 1: From this we get f =6, a=2, y=1 . Not sufficient for z.

Statement 2: f=c+3. This can give a few values.

Combining these, we get z = 9

hm..Thanx....Statement 1 is not sufficient
but Statement 2 is sufficient.
cuz z is positive single digits, (f,c) can be
(4,1) (5,2) (6,3) (7,4) (8,5) (9,6)

St2:
f-c = 3
Can be (f,c) = (3,0), (4,1), (5,2).... (9,6)
Insufficient.

St1:
Since all the values are single digits, y must be 1. If y = 2, f will be a double digit number. But we have no information abotu c, so we cannot derive z. Insufficient.

Using St1 and St2:
we know f = 6, c = 3 and z = 9. Sufficient.

did you guys, put the diffent digit values for other variables too? if you go after only c, f and z, yes it is C but if go after all values, only 3, 6, and 9 work for c, f and z.

in both circumstances, z is 9.

Can you please explain prof, how can you deduce the answers from either 1 or 2? I honestly can't think of any answer other than C.

how could you fill the values for all variables?

Quote:

a b c d e f ----- x y z

If, in the addition problem above, a, b, c, d, e, f, x, y, and z each represent different positive single digits, what is the value of z ?

(1) 3a = f = 6y (2) f â€“ c = 3

from i, y = 1, a = 2, f = 6. lets put these values:

2 b c
d e 6
-----
x 1 z

the following is the only way to have the different single digit values for these variables. however, the values for some variables can be changed, the value of z remains 9.

did you guys, put the diffent digit values for other variables too? if you go after only c, f and z, yes it is C but if go after all values, only 3, 6, and 9 work for c, f and z.

in both circumstances, z is 9.

Can you please explain prof, how can you deduce the answers from either 1 or 2? I honestly can't think of any answer other than C.

how could you fill the values for all variables?

Quote:

a b c d e f ----- x y z

If, in the addition problem above, a, b, c, d, e, f, x, y, and z each represent different positive single digits, what is the value of z ?

(1) 3a = f = 6y (2) f â€“ c = 3

from i, y = 1, a = 2, f = 6. lets put these values:

2 b c d e 6 ----- x 1 z

the following is the only way to have the different single digit values for these variables. however, the values for some variables can be changed, the value of z remains 9.

2 7 3 5 4 6 ----- 8 1 9 hope this helps....

same applies with ii.

2+6, 1+6, 0+6, 3+6 all end up with single digits for z.

St2: f-c = 3 Can be (f,c) = (3,0), (4,1), (5,2).... (9,6) Insufficient.

St1: Since all the values are single digits, y must be 1. If y = 2, f will be a double digit number. But we have no information abotu c, so we cannot derive z. Insufficient.

Using St1 and St2: we know f = 6, c = 3 and z = 9. Sufficient.

Ans C

0 is not +ve digit.
you guys are considering only c, f and z but not other variables.

the question is "how to assign the digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 to the variables a, b, c, d, e, f, x, y and z?

Harvard asks you to write a post interview reflection (PIR) within 24 hours of your interview. Many have said that there is little you can do in this...