<PRE><B>Question 1016098</B>
This was answered yesterday.
Try going step by step according the the description.
Prem bought the transistor for 500 rupees.


Prem sold it to Sudhir for {{{500*(1.10)}}} rupees.


Sudhir sold it to Hari for {{{500*(1.10)*(1.15)}}} rupees, meaning that is what Hari paid to Sudhir.



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THAT IS THE ANSWER WITH THE STEPS.  I JUST DID IT FOR YOU.  COMPUTE THE RESULT!!</PRE>