An design manager has 10patterns of chairs & 5patterns of tables. In how many ways can he make a pair of table & chair? Choose the most appropriate option:	A) 20	B) 40	C) 50	D) 90	E) 100
He has has ten patterns of chairs and eight patterns of tables   Hence, A chair can be arranged in 10 ways and   A table can be arranged in 5 ways   Hence one chair and one table can be arranged in 10 x 5 ways = 50 ways   50
<result>C</result>
An design manager has 10patterns of chairs & 5patterns of tables. In how many ways can he make a pair of table & chair?