Question

A shop owner bought 30 folders and some journals. He paid $82.50 for the folders. Each journal cost 10 times as much as a folder. What was the cost of each journal?

Answer 1

to find the cost of each folder first:
30/82.50 = 1/x
cross multiply:
30x = 82.50
find x.
x = 2.75
a journal is 10 times as much as a folder.
multiply.
2.75*10=27.50