Answer the following without a calculator!

a) Which of the following would be a plausible answer to this question: What was my car’s gas mileage on the trip from Chicago to Washington, DC?

1,000 kilometers 800 miles 25 miles per gallon 38.3%

300 miles per gallon 48

b) Which of these is a plausible answer to this question: What is the per capita income in Japan? (What does per capita mean?)

120 million \($5\) billion \($300 $20,000\) 20%

c) In a store, I see there is a 40% markdown on winter coats. Chicago has an 8.75% sales tax.

A coat that was originally priced at \($200\) will end up costing how much, approximately?

\($160\) \($129\) \($88\) \($186 $209\) \($165\) \($169\)

d) Japan’s population decreases but its total national income remains the same. What happens to the per capita income?

decreases increases remains the same

e) Here’s a question for baseball fans. What, approximately, was Ted William’s lifetime batting average? (Explain batting average.)

2.80 7 3,000 5.04 .350 .100 70