I'll give you a question, please answer with step-by-step reasoning process.
An design manager has 10patterns of chairs & 6patterns of tables. In how many ways can he make a pair of table & chair?\nOptions:\n(A) 20\n(B) 60\n(C) 80\n(D) 90\n(E) 100

(B)
He has has ten patterns of chairs and eight patterns of tables\nHence, A chair can be arranged in 10 ways and\nA table can be arranged in 6 ways\nHence one chair and one table can be arranged in 10 x 6 ways = 60 ways.

The final answer: (B)