A boy has nine trousers and 10 shirts. In how many different ways can he select a trouser and a shirt?	Answers
A) 90  B) 98  C) 106  D) 108  E) 111
Explanation:   The boy can select one trouser in nine ways.   The boy can select one shirt in 10 ways.   The number of ways in which he can select one trouser and one shirt is   9 * 10= 
<gadget id="calculator">  9 * 10</gadget>
<output>90</output>
90 ways   90)
<result>A</result>
A boy has nine trousers and 10 shirts. In how many different ways can he select a trouser and a shirt?