a sum was put at simple interest at certain rate for 3 years . had it been put at 1 % higher rate it would have fetched rs . 63 more . the sum is : a . rs . 2,400 b . rs . 2,100 c . rs . 2,200 d . rs . 2,480
"1 percent for 3 years = 63 1 percent for 1 year = 21 = > 100 percent = 2100 answer : b"
multiply(divide(63, 3), const_100)