A sum of Rs. 16000 is lent partly at 8% and remaining at 12% per annum. If the average yearly rate of interest is 10.5%, the two parts are
1
4000, 12000
2
5000, 11000
3
6000, 10000
4
7000, 9000
5
None of these
A sum of Rs. 16000 is lent partly at 8% and remaining at 12% per annum. If the average yearly rate of interest is 10.5%, the two parts are