I got the following problem
Of 100 clock radios with digital tuners and / or CD players sold recently in a department store, 70 had digital; tuners and 90 and CD players. How many radios had both digital tuners and CD players?
I'm stick on this problem. Can anyone help me?
Also where can I get the Definition to all of the symbols of Sets?
Can you show me how you got this. I'm trying to learn not be just given the asnswer
Of 100 clock radios with digital tuners and / or CD players sold recently in a department store, 70 had digital; tuners and 90 and CD players. How many radios had both digital tuners and CD players?
I'm stick on this problem. Can anyone help me?
Also where can I get the Definition to all of the symbols of Sets?
Can you show me how you got this. I'm trying to learn not be just given the asnswer