Real-Life Math
Being an auto parts specialist, you really have to pay attention
to the particulars of your work. But when it comes to math skills, the requirements
are pretty general. "We use math on a daily basis when calculating the receipts.
Since people usually buy more than one item at a time, it can get pretty tricky,"
says auto parts specialists Allan Ho.
You are an auto parts specialist.
The winter has finally approached and your semi-annual "blue tag" sale has
begun. All items with a blue tag on them are discounted another 25 percent.
Demanding
customers are flooding your boss's shop with purchases. It brings tears of
joy to your boss, but for you, they are tears of fear and fatigue. The cashiers
are all extremely busy, so the boss comes up to you and tells you to open
another till.
A mob of customers rushes to you. Since this is a sale,
people are not making just one but multiple purchases.
Your first customer
is buying the parts to tune up and wash his car. He buys spark plugs, oil,
air and gas filters, a PCV valve, a box of oil, ignition wires
and some wax for his car. He also buys a new sport muffler. You have to calculate
all of the purchases for the customer.
Here are your numbers:
Parts
Performance
spark plugs $40 (blue tagged)
Oil ($6), air ($8) and gas ($10) filters
(all blue tagged)
PCV valve $10
Box of oil $40 (blue tagged)
Ignition
wires $40 (blue tagged)
Wax $10
Muffler $200 (blue tagged)
Discount
25
percent on all blue tagged items
Tax
14 percent