# A car travelling with $\frac{2}{3}$ rd of its actual speed, covers 42 miles in 1 hr 30 min 10 sec. What is the actual speed of the car ?
$\begin{array}{1 1} (a)\; 50\; miles/hr \\(b)\; 48\; miles/hr \\(c)\; 46\;miles/hr \\ (d)\; 42\; miles/hr \end{array}$