Ram spends 20% of his monthly income on Rent. Out of the remaining, he spends 10% on his children's education, 30% on food, and 12% on the bills. Now he is left with Rs. 28800 after all these expenditures. Find his monthly income.
1
Rs. 60000
2
Rs. 75000
3
Rs. 65000
4
Rs. 70000
5
Rs. 80000