Question

Dan took 12.5 seconds to run the 100 meter dash. he calculated the time to be approcimately

1) 0.2083 minute
2) 750 minutes
3) 0.2083 hour
4) 0.52083 hour

Answer 1

Answer: 1) 0.2083 minute

Explanation:

Given : Dan took 12.5 seconds to run the 100 meter dash.

We know that 1 minute = 60 seconds

⇒ 1 second =
`(1)/(60)` minute

Then , the 12.5 seconds =
`(12.5)/(60)\text{ minute}`

`=0.208333333333\approx0.2083\text{ minute}`

1 hour= 60 minute

⇒ 1 minute =
`(1)/(60)` hour

Then,
`0.2083\text{ minute}=(0.2083)/(60)\approx0.00347`

hence, the correct answer is 0.2083 minute.