reema took a loan of rs 1800 with simple interest for as many years as the rate of interest . if she paid rs . 632 as interest at the end of the loan period , what was the rate of interest .
"explanation : let rate = r % then time = r years . = > 1800 ∗ r ∗ r / 100 = 632 = > r 2 = 35.11 = > r = 5.925 % option a"
sqrt(divide(632, divide(1800, const_100)))