SOLUTION: If John Gets 90% Of Total Marks And Ken Gets 90% Of Marks Obtained By Jon, Ken gets 405 marks, What Are The Total Marks

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Question 550047: If John Gets 90% Of Total Marks And Ken Gets 90% Of Marks Obtained By Jon, Ken gets 405 marks, What Are The Total Marks
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If John Gets 90% Of Total Marks
And Ken Gets 90% Of Marks Obtained By John,
Ken gets 405 marks, What Are The Total Marks
:
Let x = the total marks
then
.9x = John's marks
and
.9(.9x) = .81x = Ken's marks
:
.81x = 405
x = 405/.81
x = 500 is the total marks