Manu earns ₹$4000$ per month and wants to save an average of ₹$550$ per month in a year. In the first nine months, his monthly expense was ₹$3500$, and he foresees that, tenth month onward, his monthly expense will increase to ₹$3700$ . In order to meet his yearly savings target, his monthly earnings, in rupees, from the tenth month onward should be
- $4350$
- $4400$
- $4300$
- $4200$