Question

in how much time will the interest on ₹800at 12.5percent per annum be ₹125

Answer 1

Hi,
SI=PRT/100
125=800×12.5×T/100
125=8×125×T/10
125=4×25×T
125=100×T
125÷100=T
1.25=T
Time is 1.25yrs
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Answer 2

Given, principal amount(P) = Rs.800
rate of interest(R) = 12.5 = 25/2
interest amount(I) = Rs.125
time duration(T) = ?
Formula, I = (PTR)/100 => T =(100*I)/(PR) = (100*125)(800*12.5) = 10/8 = 5/4 = 1.25 years = 1 year and 4 months