Question

The simple interest on a certain sum for 8 months at 4% is 129 less than the simple interest on the
same sum for 15 months at 5% per annum. What is the sum?
The simple interest on a sum of 5 years is one-fourth of the sum. What is the rate of interest per annum?​

Answer 1

Answer:

300

Step-by-step explanation:

the simple interest of on a certain 8 month=4% is 129 so;the sum of 15 monthat 5% is 300