The salaries of A, B and C are of ratio of 2 : 3 : 5. If the increment

Question

The salaries of A, B and C are of ratio of 2 : 3 : 5. If the increments of 15%, 10% and 20% are made to their respective salaries, then find the new ratio of their salaries.

A. 19 : 33 : 60
B. 21 : 33 : 60
C. 23 : 33 : 60
D. 25 : 33 : 60
E. 27 : 33 : 60

nick1816 · Answer

New ratio of their salaries = 2*1.15 : 3* 1.1 : 5*1.2 = 2.3:3.3:6.0 = 23:33:60

gmatcafe · Answer

Let A, B, and C be the salaries of A, B, and C. Let x be the largest common divisor for A, B, and C. Then before increments were made, the values of A, B and C are:

A=2x
B=3x
C=5x

After the increments were made:

A=2x* \frac{115}{100} 
B=3x* \frac{110}{100} 
C=5x* \frac{120}{100}

A:B:C=(2x* \frac{115}{100} ) : (3x* \frac{110}{100} ) : (5x* \frac{120}{100} )= 2*115 : 3*110 : 5*120=
46:66:120=23:33:60  C)

ScottTargetTestPrep · Answer

Solution:
 
We can let the original salaries of A, B, and C be $200, $300 and $500, respectively. Therefore, their new salaries are 200 x 1.15 = $230, 300 x 1.1 = $330 and 500 x 1.2 = $600, respectively, and hence, the ratio of their new salaries is:

230 : 330 : 600 = 23 : 33 : 60

Answer: C

Abhishek009 · Answer

A : B : C = 200 : 300 : 500  (Say)

After the increase -

A : B : C = 200*\frac{115}{100} : 300\frac{110}{100} : 500\frac{120}{100} = 230 : 330 : 600 = 23 : 33 : 60  ,  Answer must be (C)

CEdward · Answer

I found that it was easier to assume for example that their total salary was 100. 
2x + 3x + 5x = 100 --> x = 10
Therefore, person A made 20, B made 30, and C made 50.

Increasing their salaries by 15%, 10%, and 20% gets you 23:33:60.

Not sure if this is the 'right' approach, but it got me the answer.

The salaries of A, B and C are of ratio of 2 : 3 : 5. If the increment

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The salaries of A, B and C are of ratio of 2 : 3 : 5. If the increment

Prep Toolkit

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