If in 1997 , 1998 and 1999 a worker received 10% more in salary each year than he did the previous year, how much did he receive in 1999 than in 1997 ?

Created: 7 years ago | Updated: 1 day ago

Updated: 1 day ago

10%

11%

20%

None of these

Bangladesh Bank Bangladesh Bank - Assistant Director - 2001 গণিত পঞ্জিকা (Calendar)

Des

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Best Ans:

প্রশ্ন: If in 1997 , 1998 and 1999 a worker received 10% more in salary each year than he did the previous year, how much did he receive in 1999 than in 1997 ?

Say, salary in 1997 was Tk. 10
In each year, he received 10% more than the previous year
In 1997, salary = 10
In 1998, salary = 10 + 1 = Tk. 11
In 1999, salary = 11 + 11x (10/100) = 11 + 1.1 = 12.1
% Difference = (Changex100)/Origina = (12.1 - 10)x100/10 = 21%

7 years ago

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