( toán du học ) If the simple interest on a certain sum of money is 4/25 of the sum and the rate percent equals the number years, then the rate of interest per annum is: * 0/1 a. 4% b. 5% c. 8% d. 10%
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Đáp án:
then the rate of interest per annum is: A. 4%
Giải thích
Simple Interest= P×R×N/ where P is principal, R is rate of interest per annum and N is number of years
simple interest on a certain sum of money is 4/25th of the sum
Px100 as R=N
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