Question

Please solve this question with the help of the options and also explain me. ​

Answer 1

Step-by-step explanation:

Given, time-2yrs, C.I.-S.I. Is Re1

rate is 4% and in fraction 4/100

Now, in simplest form it is 1/25

now, time is 2yrs so we will square the denominator i.e. (25)²=625unit

so, we will take 625unit as principal

here , we will get C.I. -S.I. - 1UNIT

1UNIT_____ Re 1

so, 625 unit_____ Rs. 625

principal =Rs. 625