Consumer Arithmetic >> Interest

Calculate loan amount with total cost and margin percentage - Interest - Consumer Arithmetic problem solver

The total cost of a plot is 50000. A financial institution pays loan to purchase the plot. It demands 20 percentage margin money (margin percentage) for the purchase. Find the margin money and principal.


total cost = 50000
margin percentage = 20
m =  ( tc * mp ) / 100
margin = ( 50000 * 20 ) / 100
margin = 10000
So the margin is 10000

Interest Formulas :

CI =  pow( P * ( 1 + ( r / 100 ) ), n ) - P

SI =  ( P * n * r ) / 100

d =  CI - SI

P =  P - m

tc =  P + SI

m =  tc - P

mp =  ( m * 100 ) / tc

emi =  tc / ( n * 12 )


where,

CI = compound interest
P = principal
r = rate
n = terms
SI = simple interest
d = difference
tc = total cost
m = margin
mp = margin percentage
emi = emi

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