Eight members of a club donate Rs. 100 each towards a Relief Fund and the President of the club donates Rs. 50 more than the average donation of all (including President) of them. Then the contribution of the president is
A certain amount invested at a certain rate, compounded annually, grows to an amountin five years, which is a factor of 1.191016 more than to whatit would have grown in two years. Whatis the rate percentage?