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Ratio and Proportion - Quant/Math - CAT 2013

  1. Algebra
  2. Progressions
  3. Averages
  4. Clocks and Calendars
  5. Data Sufficiency
  6. English Grammar
  7. Function
  8. Geometry
  9. Coordinate Geometry
  10. Interest
  11. Mensuration
  12. Mixtures & Alligations
  13. Number System
  14. Percentages
  15. Permutation & Combination
  16. Pipes & Cisterns And Work & Time
  17. Probability
  18. Profit & Loss
  19. Races
  20. Ratio, Proportion
  21. Speed, Time & Distance
  22. Trigonometry
  23. Miscellaneous
  24. General Knowledge
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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