Question

Sanjay lent some money to Ramu at 10%p.a.simple interest on 8th January ,2011.Ramu paid back 2128 to Sanjay on 21march ,2012.what amount did Ramu borrow from Sanjay?

Answer 1

Ramu borrow Rs 1900 from Sanjay at 10% per annum for 8th January ,2011 to 21march ,2012 if he paid back 2128

Step-by-step explanation:

Let say Ramu borrow from Sanjay = P

Interest = 10 %  per annum

Time period from 8th Jan 2011 to 21 Mar 2012

=  1 year + 73 Days

= 1 Year + 73/365 Year

= 1 + 1/5  Year

= 6/5 Year

= 1.2 Year

Interest = P * R * T /100

=> Interest = P * 10 * 1.2 /100 = 0.12P

P + 0.12P  = 2128

=> 1.12P = 2128

=> P = 1900

Ramu borrow Rs 1900 from Sanjay

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