Three friends A, B and C invested ₹4,80,000, ₹4,20,000 and ₹3,60,000 in a business. If they earned a net profit of ₹2,10,000, then A's share in the net profit will be :

₹80,000

The correct answer is Option (1) → ₹80,000

Total investment = 4,80,000 + 4,20,000 + 3,60,000

= 12,60,000

A's share in profit = $\frac{\text{A's investment}}{\text{Total investment}}×\text{Total profit}$

$=\frac{4,80,000}{12,60,000}×2,10,000$

$=80,000$