GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 21 Apr 2019, 11:23

### 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

# 1 year ago the ration between A's and B's salary was 3:4. Ratios

Author Message
TAGS:

### Hide Tags

Manager
Joined: 26 Nov 2018
Posts: 87
Concentration: Technology, Entrepreneurship
GPA: 3.3
WE: Manufacturing and Production (Manufacturing)
1 year ago the ration between A's and B's salary was 3:4. Ratios  [#permalink]

### Show Tags

29 Mar 2019, 10:38
00:00

Difficulty:

45% (medium)

Question Stats:

67% (03:15) correct 33% (02:41) wrong based on 9 sessions

### HideShow timer Statistics

1 year ago the ratio between A's and B's salary was 3:4. Ratios of their individual salaries between last year's and this year's are 4:5 and 2:3 respectively. At present the total of thier salary is 4160. The salary of A, now, is?

A. 1040
B. 1500
C. 1600
D. 1700
E. 1740
Math Expert
Joined: 02 Aug 2009
Posts: 7573
Re: 1 year ago the ration between A's and B's salary was 3:4. Ratios  [#permalink]

### Show Tags

30 Mar 2019, 02:36
Rashed12 wrote:
1 year ago the ratio between A's and B's salary was 3:4. Ratios of their individual salaries between last year's and this year's are 4:5 and 2:3 respectively. At present the total of thier salary is 4160. The salary of A, now, is?

A. 1040
B. 1500
C. 1600
D. 1700
E. 1740

Salary of A:B on year ago = 3:4 or 3x:4x..
Now let us take them imdividually
A : change = 4:5, last year it was 3x and this year let it be A. $$..4:5=3x:A....A*4=3x*5...A=\frac{15x}{4}$$
B : change = 2:3, last year it was 4x and this year let it be B. $$..2:3=4x:B....B*2=4x*3...B=\frac{12x}{2}=6x$$
Thus total this year = $$\frac{15x}{4}+6x=\frac{39x}{4}=4160........x=\frac{4*4160}{39}=\frac{4*320}{3}$$

We are looking for value of A, which is $$\frac{15x}{4}=\frac{15*4*320}{4*3}=5*320=1600$$

C
_________________
Re: 1 year ago the ration between A's and B's salary was 3:4. Ratios   [#permalink] 30 Mar 2019, 02:36
Display posts from previous: Sort by