if the principal amount is 650 and the interest is 260 what is the rate of interest?
Answer (1)
The rate r (in percent) is[tex]\[r=\frac{\text{interest}}{\text{principal}}\times 100\%=\frac{260}{650}\times 100\%=40\%.\][/tex]
The rate r (in percent) is[tex]\[r=\frac{\text{interest}}{\text{principal}}\times 100\%=\frac{260}{650}\times 100\%=40\%.\][/tex]
