Rahul invests Rs.32,000 in a bank, 7% p.a. simple interest. How much more should he invest at 10% p.a. to get 8% return on his total investment?
Rs. 8,000
Rs. 16,000
Rs. 24,000
None of these
B
Mr Kumar invested a sum of Rs. 15000 at 6% p.a. simple interest and another amount at 8% p.a. simple interest. The total interest earned at the end of one year on the total amount invested becomes 7% p.a. Find the total amount invested.