Question

a certain sum of money amounts to 312rupees at 4% interest:324rupees at 8%interest .Find the principal and period of time​

Answer 1

Answer:

To use the simple interest formula, I = Prt, we substitute in the values for variables that are given, and then solve for the unknown variable. ... If an amount of money, P, the principal, is invested for a period of t years at ... Find the rate if a principal of $8,200 earned $3,772 interest in 4 years. ... 8,200(0.115)(4).

Step-by-step explanation: