Wednesday, November 23, 2011

Reverse percentage calculation?

How to find X, which give you 115000 when 15% is deducted(Reverse Percentage Calculation)?

eg ax + bx = c your eqution is
ax +b = c
where a , b and c are numerical values and x is the unknown!

For the time being we can phrase the equation as

x - 15%x = 115000

then your answer would be

x(1 - 0.15) = 115000 (factorizing x)

x (0.85) = 115000 then dividing by 0.85

x = 135294.1176

substitute for x and you will find this is a correct answer!

135294.1176 - 0.15(135294.1176) = 115000


http://uk.answers.yahoo.com/question/index?qid=20070420010452AAsnX7C

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