In a workshop there are 5 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?	Choose the correct option: A) A)168. B) B)80. C) C)100. D) D)48. E) E)16.
ways to select one shelf = 2   ways to select one bed = 5   ways to select one of the following: a chair or a closet = 7+3= 
<gadget id="calculator">7+3</gadget>
<output>10</output>
10   ways to select all of them together= 2*5*10= 
<gadget id="calculator">2*5*10</gadget>
<output>100</output>
100   Answer : 100.
<result>C</result>
In a workshop there are 5 kinds of beds, 3 kinds of closets, 2 kinds of shelves and 7 kinds of chairs. In how many ways can a person decorate his room if he wants to buy in the workshop one shelf, one bed and one of the following: a chair or a closet?