Significant Figures: In Calculations Video Lessons

Concept:

# Problem: Ellen recently purchased a new hybrid car and wants to check her gas mileage. At an odometer setting of 651.1 mi, she fills the tank. At 1314.4 mi she requires 16.1 gal to refill the tank. Assuming that the tank is filled to the same level both times, how is the gas mileage best expressed?a. 40 mi/galb. 41 mi/galc. 41.2 mi gald. 41.20 mi/gal

###### FREE Expert Solution

We are asked how is the gas mileage best expressed.

When dealing with multiplication or division the least number of significant figures will determine the final answer.

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###### Problem Details

Ellen recently purchased a new hybrid car and wants to check her gas mileage. At an odometer setting of 651.1 mi, she fills the tank. At 1314.4 mi she requires 16.1 gal to refill the tank. Assuming that the tank is filled to the same level both times, how is the gas mileage best expressed?

a. 40 mi/gal

b. 41 mi/gal

c. 41.2 mi gal

d. 41.20 mi/gal