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Ratio and Proportion - Quant/Math - CAT 2009

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Question 4 the day: April 16, 2003

The question for the day is from the topic of Ratio and Proportion.
The monthly salaries of two persons are in the ratio of 4:7. If each receives an increase of Rs.25 in the salary, the ratio is altered to 3: 5. Find their respective salaries.

(1) 120 & 210 (2) 80 & 140
(3) 180 & 300 (4) 200 & 350
Correct Answer - (4)
Solution:


Let the salaries be 4x and 7x

Therefore,

5(4x + 25) = 3(7x + 25)

20x + 125 = 21x + 75

x = 50

Therefore, their salaries are 4(50) & 7(50) i.e., 200 & 350




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