It is currently 22 Nov 2017, 23:06

### GMAT Club Daily Prep

#### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# This weeks problem from http://www.manhattangmat.com/ I got

Author Message
Manager
Joined: 11 Oct 2003
Posts: 102

Kudos [?]: [0], given: 0

Location: USA
This weeks problem from http://www.manhattangmat.com/ I got [#permalink]

### Show Tags

27 Jan 2004, 20:09
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

This weeks problem from http://www.manhattangmat.com/

I got 40 as the answer. Did anyone else try it?

Kudos [?]: [0], given: 0

Director
Joined: 13 Nov 2003
Posts: 788

Kudos [?]: 64 [0], given: 0

Location: BULGARIA

### Show Tags

28 Jan 2004, 04:18
it is given that 1)K/L=16 and 2)(K-L)/10=Z then from 1) K=16L and substitute in 2) which gives (16L-L)=10Z or Z=1,5L . We do not know anything about p,q,r,s, ( the powers of L) so think should be E)

Kudos [?]: 64 [0], given: 0

Senior Manager
Joined: 05 May 2003
Posts: 424

Kudos [?]: 12 [0], given: 0

Location: Aus

### Show Tags

28 Jan 2004, 08:11
I am also getting 40.

For W to be 16, only b should be greater than q by 4 units. All the others should be equal. Then, Z will be 400/10.

Kudos [?]: 12 [0], given: 0

Senior Manager
Joined: 05 May 2003
Posts: 424

Kudos [?]: 12 [0], given: 0

Location: Aus

### Show Tags

28 Jan 2004, 08:12
BG wrote:
it is given that 1)K/L=16 and 2)(K-L)/10=Z then from 1) K=16L and substitute in 2) which gives (16L-L)=10Z or Z=1,5L . We do not know anything about p,q,r,s, ( the powers of L) so think should be E)

K/L is not given as 16.

Kudos [?]: 12 [0], given: 0

Director
Joined: 13 Nov 2003
Posts: 788

Kudos [?]: 64 [0], given: 0

Location: BULGARIA

### Show Tags

28 Jan 2004, 08:38
"For numbers K and L, the function W is defined as 5a2b7c3d ├╖ 5p2q7r3s. The function Z is defined as (K тАУ L) ├╖ 10. If W = 16, what is the value of Z?"

Kudos [?]: 64 [0], given: 0

SVP
Joined: 30 Oct 2003
Posts: 1788

Kudos [?]: 114 [0], given: 0

Location: NewJersey USA

### Show Tags

29 Jan 2004, 18:59
I solved it as follows
5^a*2^b*7^c*3^d / ( 5^p* 2^q * 7^r * 3^s ) = 16

Only power of 2 is remaining so 2^(b-q) = 16 = 2^4
so b-q = 4, a=p, c=r and d=s
Z = (K-L)/10 = ( 1000(a-p) + 100(b-q) + 10(c-r) + 1(d-s) )/10

= 100 * 4/10 = 40

Kudos [?]: 114 [0], given: 0

29 Jan 2004, 18:59
Display posts from previous: Sort by