# As Mark Ellon is getting ready for a meeting, the room goes dark. He fishes for a green shirt in his

As Mark Ellon is getting ready for a meeting, the room goes dark. He fishes for a green shirt in his drawer. He wears only blue, green and white colors. His drawers have identical shirts in these colors: 28 blue, 25 green, and 13 white shirts. How many shirts did he throw on the floor to be a cent percent sure that he has a taken out a green shirt?
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Step 1
Given:
Number of blue shirts is, n(B)=28.
Number of green shirts is, n(G)=25.
Number of white shirts is, n(W)=13.
The objective is to find the number of shirts that he must throw on the floor to be a cent percent sure that he has a taken out a green shirt.
Step 2
The total number of shirts can be calculated as,
N=n(B)+n(G)+n(W)
=28+25+13
=66
Number of non green shirts are,
n(G)=n(B)+n(W)
=28+13
=41
Thus, there are 41 non green shirts in the drawer. So the person must throw 41 shirts on the floor to make a cent percent sure that 42nd shirt is green shirt.
Hence, the number of shirts that the person must throw on the floor is 41.