The most common kids clothing size is reported to be a Medium. Stores use a table like the one below to decide how many size Mediums to buy when it places an order on a new clothing item.
Total number items ordered Size Medium to order
30 15
60 30
90 45
Part A
What is the ratio of the number of size Medium items the store should order to the total number of items being ordered? (Enter your answer like this 1:1 )
Part B
What percent of each order will be size Medium items?