For What Sum, The Simple Interest at n% for ‘n’ Years will be ‘n’?
Answer: (3) 100/n
Let the sum be Rs. X.
Rate = n%, Time = n years and Simple interest = n
Simple Interest = P x R x T/100
Where, P = principal, R = rate, & T = time.
Then, n = X x n x n /100
X = 100/n
Hence, the answer is (3) 100/n.