Suppose a train travels x miles in y hours and 15 minutes. Its average speed in miles per hour is
$$(A)\ \frac{(y+15)}{x}$$
$$(B)\ x(y−\frac{1}{4})$$
$$(C)\ \frac{x}{\left(y+\frac{1}{4}\right)}$$
$$(D)\ \frac{x}{y+15}$$
$$(E)\frac{(y+\frac{1}{4})}{x}$$
The OA is C.
Please, can any expert assist me with this PS question? I don't have it clear. Thanks.
$$(A)\ \frac{(y+15)}{x}$$
$$(B)\ x(y−\frac{1}{4})$$
$$(C)\ \frac{x}{\left(y+\frac{1}{4}\right)}$$
$$(D)\ \frac{x}{y+15}$$
$$(E)\frac{(y+\frac{1}{4})}{x}$$
The OA is C.
Please, can any expert assist me with this PS question? I don't have it clear. Thanks.
