The ratio of pencils to all the item on the desk is 1 : 10
According to Gary,
Number of pencils on the desk = 4
Number of markers on the desk = 12
Number of crayons on the desk = 24
Total number of item son the desk = 4 + 12+ 24
= 40
The ratio of pencils to all the item is given as = (number of pencils)/(total number of items)
= 4/40
= 1/10
Which in ratio can be written as 1 : 10
Thus the ratio of pencils to all the item is 1 : 10
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