$1+25\%=\frac{5}{4}\ $
$1÷\frac{5}{4}=\frac{4}{5}\ $
$36分钟=\frac{3}{5}小时\ $
$\frac{3}{5}÷(1-\frac{4}{5})=3(小时)\ $
$1+\frac{1}{3}=\frac{4}{3}\ $
$1÷\frac{4}{3}=\frac{3}{4}\ $
$15分钟=\frac{1}{4}小时\ $
$\frac{1}{4}÷(1-\frac{3}{4})=1(小时)\ $
$100÷(3-1)=50(千米)\ $
$50×3=150(千米) $
$答:甲乙两地相距150千米。$
