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Percentages (Multiple Successive Percentage Increases & Decreases) By Nilanjan Dutta CAT 100%-iler CAT PREPARTION WITH 100 PERCENTILERS

Brief Introduction About Myself BESU Shibpur, 2012 pass-out (CS) > Final Year (2011 - 12 season) appeared for CAT/XAT IIFT > CAT 99.43, XAT 99.35, lIFT 99.59 Converts - XLRI, IIM-Indore, IIFT XLRI 2014 pass-out CAT 100%-iler > Working as a Business Consultant with an IT firm in Kolkata QA-DI-LR & GD-Pl Mentor 2nd attempt at CAT-100%-ile in CAT 2016 > National Level Debater, Lead Actor, Sports Enthusiast

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when expressed as a percentage of its initial price? 68% 77% 85% 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? 68% 77% 85% At every stage there is a change in price 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? 68% 77% At every stage there is a change in price Final Price = P 1.2 0.9 1.3 0.6 85% 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? 68% 77% At every stage there is a change in price Final Price P 1.2 0.9 1.3 0.6 85% P 1.08 0.78 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? O 68% 77% At every stage there is a change in price Final Price = P 1.2 0.9 1.3 0.6 = P 1.08 0.78 = 0.85 P (Approx.) 85% 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? 68% 77% At every stage there is a change in price Final Price = P 1.2 0.9 1.3 0.6 85% - Px1.08x0.78 = 0.85 P (Approx.) 85% of Initial Price 105%

Percentages IMS SIMCAT 2018 The price of an article is first increased by 20%, then decreased by 10%, then increased by 30% and finally decreased by 40%. Approximately, what was the price of the article, when d as a percentage of its initial price? 68% 77% At every stage there is a change in price Final Price = P 1.2 0.9 1.3 0.6 85% - Px1.08x0.78 = 0.85 P (Approx.) 85% of Initial Price 105%

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