67.
A and B started a business by investing ₹70,000 each. After 10 months A invests an additional amount of ₹40,000. After 2 more months B withdraws ₹20,000. After 2 more months a third person C joins the business and invests ₹40,000. If at the end of 2 years, C gets ₹7,500 as his share of profit, then what is A's share in the profit?