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rbmix.com |
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Percentage
x%
of y =
*y
for
example 30% of 600 is
*
600 = 180
If a quantity q is increased by x%, then
new
quantity is q + {
*
q }= q *{1
+
}
If a quantity q is decreased by x%, then
new
quantity is q - {
*
q }= q *{1
-
}
If
the present population of a town is P and the population increases at
the rate of x% per year, then the population after n years is P[1
+
]n
.
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