If the SI on a certain sum of money is 4/25 of the sum and the rate per cent equals the number yrs, then the rate of interest/annum is? Pick one:
A) 4% B) 55 C) 6% D) 7% E) 9%
Sol Let the prmcipal be Rs. x   Then the simple interest (1)   Let the me ofinterestp 3 be 1%,   than tune m : ryears   max! max   pm   ‘X:5   4%   4%
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If the SI on a certain sum of money is 4/25 of the sum and the rate per cent equals the number yrs, then the rate of interest/annum is?