SOLUTION: the number of employees in an office increased by 10% and by 20% in two successive years.If the present strength is 792,what was the number of employees in the office two years ago

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: the number of employees in an office increased by 10% and by 20% in two successive years.If the present strength is 792,what was the number of employees in the office two years ago      Log On


   

Question 1066811: the number of employees in an office increased by 10% and by 20% in two successive years.If the present strength is 792,what was the number of employees in the office two years ago?
Answer by josmiceli(19441) About Me  (Show Source):
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Let +a+ = number of employees 1 yr ago
+a+%2B+.2a+=+792+
+1.2a+=+792+
+a+=+660+
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Let +b+ = number of employees 2 yrs ago
+b+%2B+.1b+=+660+
+1.1b+=+660+
+b+=+600+
Two yrs ago there were 600 employees