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Calculate Inverse Rule of Three


The more a, the less b.

a * b = c * x
x = a * b / c

Example: 3 bricklayers build a wall in 4 hours. How long do 5 bricklayers need?
a=3, b=4, c=5 ⇒ x=2.4 hours (2 hours, 24 minutes).

a:
b:
c:
x:

Please enter three values, the fourth will be calculated.




The calculators use . and , als decimal separators.


Formulary and calculators math and physics.
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