Question

j. Sona gave the total amount of interest by taking a loan of Rs. 700 for 5 yrs at the rate of
simple interest of 4% per annum which is equal to the amount of total interest if she would
take a loan of Rs. 900 for the same time, calculate the rate of simple interest in percent per annum.​

Answer 1

Answer:

28/9% = 3.11%

Step-by-step explanation:

case1 : loan = P.A.= 700rs, Time= 5 years, rate = 4%. simple interest = p×r×t/100 = 700× 5×4/100 = 7×5×4 = 140. case2 : P = 900, time = 5 years, rate =?, S.I.= 140 rs ( found in case 1). sinnce, SI = p*r*t/ /100 = 900×r×5/100 = 45 r. but SI = 140 , 140 = 45 r , r= 140/ 45 = 28/9 = 3.11% if it would help you then follow me