beccacutie
7

# In what time will $400 amount to$512 if the simple interest is calculated at 14% per annum?

$512\-400\=112\\\\\\frac{112\}{400\}\cdot100\%=0,28\cdot100\%=28\%\\\\28:14=2-years$
$512-400=112\\\\ \frac{112}{400} \cdot 100\%= \frac{112}{4}\%=28\%\\ \\ 28 \% : 14\%=2\\ \\Ans. \ 2\ years$