Question

A box contains 2 plain pencils and 2 pens. A second box contains 1 color pencil and 9 crayons. One item from each box is chosen at random. What is the probability that a pen from the first box and a crayon from the second box are selected?

Answer 1

Explanation:

ok...so in the first box there is 2 pencils and 2 pens...a total of 4 things in this box.....so the probability of picking a pen will be :

number of pens / total things in the box........2/4 which reduces to 1/2.

second box.....1 pencil and 9 crayons...a total of 10 things

probability of picking a crayon is :

number of crayons / total things in the box .....9/10

the probability of both these things happening can be found by multiplying ur results

1/2 * 9/10 = 9/20 <== can also be written as 9:20 or 9 to 20

Answer 2

What is the probability of choosing a pen from the first box? It is 5/8.

What is the probability of selecting a crayon from the second box? It is 3/12 = 1/4

Explanation:

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.