Question

A sum of money lent at simple interest amounts to Rs.783 in 2years and to Rs.837 in 3 years. Find the sum and the rate percent per annum.

Please explain with steps.

Answer 1

Answer:

Amount after 2 years =Rs.783

Amount after 3 years =Rs.837

Therefore,

S.I. of 1 year =837−783=Rs.54

⇒ S.I. of 2 years =54×2=Rs.108

Principal sum =783−108=Rs.675

Therefore,

S.I.=  

100

PRt

​  

 

⇒54=  

100

675×R×1

​  

 

⇒R=  

675

54×100

​  

=8%

Please mark my answer as brainliest.

Step-by-step explanation:

Answer 2

Answer:

Rs.1620 percent per annum ....