A student has 7 trousers and 9 shirts. In how many different ways can the student select a trouser and a shirt?	Choose the correct answer:  A) 45  B) 51  C) 57  D) 63  E) 69
The student can select one trouser in 7 ways.   The student can select one shirt in 9 ways.   The number of ways to select one trouser and one shirt is  7 * 9= 
<gadget id="calculator"> 7 * 9</gadget>
<output>63</output>
63 ways   The answer is 63.
<result>D</result>
A student has 7 trousers and 9 shirts. In how many different ways can the student select a trouser and a shirt?