Question: An design manager has 10patterns of chairs & 7patterns of tables. In how many ways can he make a pair of table & chair?\nOptions:\n(A) 70\n(B) 40\n(C) 80\n(D) 90\n(E) 100 Random thoughts:
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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 7 ways\nHence one chair and one table can be arranged in 10 x 7 ways = 70 ways The final answer: (A).
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