maybe this is a answer!!!
Simple Interest = (Principal * Rate * Time) / 100
Principal = Sum borrowed
Rate = 12% p.a.
Time = 2 years
Simple Interest = Rs.1920
we get:
1920 = (Principal * 12 * 2) / 100
Simplifying this equation, we get:
1920 * 100 = Principal * 12 * 2
192000 = Principal * 24
Principal = 192000 / 24
Principal = 8000
Therefore, Mrs. Joshi borrowed Rs.8000 from the bank.