Question

Sanjay lent some money to Ramu at 10% per annum simple interest on 8 January 2011. Ramu paid back Rs 2128 to Sanjay on 21st March 2012. What amount did Ramu borrow from Sanjay

Answer 1

r=10%
t=6/5years(8 January 2011 to 21 March 2012)
A=P+s.i.=P+((p*r*t)/100)=P+((p*12)/100)=P+((p*3)/25)=28p/25=2128
=>28p=2128*25
=>p=(17*25)/2=₹212.50