Question

Brandi jogged 2 1\2 miles in 30 minutes. Sharma jogged 3 1\2 miles in 3\4 hour. who jogged at slower rate

Answer 1

The speed of Sharma is slower than the speed of Brandi

I.e ∵ 4.67 miles per hour
`<` 5 miles per hour

∴
`S_2`
`<`
`S_1`

Explanation:

Given as :

The distance cover by Brandi =
`D_1` = 2
`(1)/(2)` =
`(5)/(2)`

The Time taken by Brandi for jogging =
`T_1` = 30 minutes =
`(1)/(2)` hour

Let the speed of Brandi =
`S_1` =
`(\textrm Distance )/(\textrm Time)`

or,
`S_1` =
}{\textrm
`T_1` }[/tex]

Or.
`S_1` =
`((5)/(2))/((1)/(2))`

∴
`S_1` = 5 miles per hour

Again

The distance cover by Sharma =
`D_2` = 3
`(1)/(2)` =
`(7)/(2)`

The Time taken by Sharma for jogging =
`T_2` =
`(3)/(4)` hour

Let the speed of Sharma =
`S_2` =
`(\textrm Distance )/(\textrm Time)`

or,
`S_2` =
}{\textrm
`T_2` }[/tex]

Or.
`S_2` =
`((7)/(2))/((3)/(4))`

∴
`S_2` =
`(14)/(3)` = 4.67 miles per hour

Now, ∵ 4.67 miles per hour
`<` 5 miles per hour

∴
`S_2`
`<`
`S_1`

So, Sharma jogged at slower late

Hence The speed of Sharma is slower than the speed of Brandi Answer