The total monthly salaries of A and B together is Rs. 90,000. A spends only 75% of his salary and B spends 80% of his salary. If they have an equal amount of Savings, find the difference in their salary.
1
Rs. 5,000
2
Rs. 10,000
3
Rs. 20,000
4
Rs. 15,000
5
Rs. 16,000