Paloma can run the 100-meter dash in sixteen and one-fifth seconds. Savannah's best time is 19.8 seconds. How much faster is Paloma than Savannah?
Answer (2)
Paloma is able to run the 100 meter dash in 16 1/5 seconds.
Savannah is able to run the 100 meter dash in 19.8 seconds.
For this question, you have to make the two times a similar form to make solving it easier.
0.8 seconds is the same as 8/10 and 1/5 is the same as 2/10.
Then you can subtract the two times to find your answer.
19 10 8 − 16 10 2
Paloma runs the 100-meter dash in 16.2 seconds, while Savannah takes 19.8 seconds. This means Paloma is 3.6 seconds faster than Savannah. Thus, Paloma is more efficient by 3.6 seconds in completing the race.
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