Question

a sum lent 18.5% for 4 years,earns same interest as sum of 6400 lent u at 5% for 4 1/2 years earns.find the sum​

Answer 1

Answer:

Sum = 1945.95

Step-by-step explanation:

a sum lent 18.5% for 4 years,earns same interest as sum of 6400 lent u at 5% for 4 1/2 years earns.find the sum​

Cosnidering Simple Interest

Simple Interest = P * R * T/100

Let say Sum = P

Case 1 :

Let say Sum = P

R = 18.5 %  T = 4 Years

=> SI  = P * 18.5 * 4/100  

=> SI = 74P/100

Case 2 : P = 6400 R = 5 %  T = 4.5 Years

=> SI  = 6400 * 5 * 4.5/100  

=> SI = 1440

=> 74P/100 = 1440

=> P = 1945.95 Rs