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A box contains 3 plain pencils and 9 plain pens. A second box contains 7 color pencils and 3 crayons. One item from the box is chosen at random. What is the probability that a plain pencil from the first box and a color pencil from the second box are selected?

 Mar 21, 2020
 #1
avatar+1956 
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The probability of picking a pen from the first box is 5/8.

 

The probability of picking a crayon from the second box is 3/12 = 1/4.

 

Therefore. the probability of picking a pen from the first box and a crayon from the second box is 5/8 x 1/4 = 5/32.

 

Hope this helped!

 Mar 21, 2020
 #2
avatar+20885 
+1

The first box contains 3 plain pencils and 9 plain pens; therefore, the probability that a plain pencil is chosen

from this box is 3/12.

The second box contains 7 colors pencils and 3 crayons; therefore, the probability that a color pencil is chosen

from this box is  7/10.

To find the final probability, multiply these two values together:  (3/12) x (7/10)  =  the answer

 Mar 21, 2020

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