Ajay and Vijay started a business with investments of Rs. 25,000 and Rs. 15,000, respectively. After 9 months, Sanjay joined them with an investment equal to Vijay. If at the end of the year profit share of Ajay is Rs. 10,000, then find the annual profit share of Sanjay.
Ratio of annual profit shares of Ajay, Vijay, and Sanjay, respectively: (25,000×12):(15,000×12):(15,000×3)=25:15:3.75=100:60:15=20:12:3 Required profit share of Sanjay: 
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