Raj has Rs. 1301 with him. He divided it amongst his sons Prakash and Prashant and asked them to invest it at 4% rate of interest compounded annually. It was seen that Prakash and Prashant got same amount after 17 and 19 years respectively. How much did Raj give to Prashant?
a. Rs. 705
b. Rs. 615
c. Rs. 676
d. Rs. 625