Question

Three students are arguing over who can run the fastest.

Student A says that she can run 2/3 mile in six minutes.
Student B says that he can run 1/2 mile in four minutes.
Student C says that he can run 4/5 mile in eight minutes.
Type your answer as a number, and if necessary, use / for the fraction bar. Fractions should be expressed in lowest terms. What fraction of a mile can Student A, B and C run in one minute?

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Answer 1

Student-A:

mile/min

Student-B:

mile/min

Student-C:

mile/min

Step-by-step explanation:

Student-A:

she can run 2/3 mile in six minutes

so,

total distance is miles

total time =6 min

we can use formula

speed=(total distance)/(total time)

mile/min

Student-B:

she can run 1/2 mile in 4 minutes

so,

total distance is miles

total time =4 min

we can use formula

speed=(total distance)/(total time)

mile/min

Student-C:

she can run 4/5 mile in 8 minutes

so,

total distance is miles

total time =8 min

we can use formula

speed=(total distance)/(total time)

mile/min

Explanation:

Answer 2

Student-A:

`speed=(1)/(9)` mile/min

Student-B:

`speed=(1)/(8)` mile/min

Student-C:

`speed=(1)/(10)` mile/min

Explanation:

Student-A:

she can run 2/3 mile in six minutes

so,

total distance is
`(2)/(3)` miles

total time =6 min

we can use formula

speed=(total distance)/(total time)

`speed=((2)/(3) )/(6)`

`speed=(1)/(9)` mile/min

Student-B:

she can run 1/2 mile in 4 minutes

so,

total distance is
`(1)/(2)` miles

total time =4 min

we can use formula

speed=(total distance)/(total time)

`speed=((1)/(2) )/(4)`

`speed=(1)/(8)` mile/min

Student-C:

she can run 4/5 mile in 8 minutes

so,

total distance is
`(4)/(5)` miles

total time =8 min

we can use formula

speed=(total distance)/(total time)

`speed=((4)/(5) )/(8)`

`speed=(1)/(10)` mile/min