A, B and C enter into a partnership. Their contributions are Rs. 30 lakhs, Rs. 20 lakhs, and Rs. 10 lakhs respectively. A and B are working partners while C is a sleeping partner. A and B get 10% and 15% of gross profit respectively as salary for managing the business. If at the year end C receives $ 3.75 lakhs, as profit, find the share of A.