Question

Runner Time compared to personal best Gregor +5.6 Hiroki –11.6 Isabelle +3.2 Juan 0 Karen –5.2 Which runners ran slower than their personal best? Juan Gregor and Isabelle Gregor, Isabelle, and Juan Hiroki and Karen

Answer 1

Gregor and Isabelle

Answer 2

Gregor and Isabelle

Explanation:

We have the runner time compared to personal best for
`5` persons i.e. Gregor
`+5.6`, Hiroki
`-11.6`, Isabelle
`+3.2`, Juan
`0`, and Karen
`-5.2`.

As
`\text{speed} = \frac {\text {distance}}{\text {time}}`, so, for a fixed distance, if anyone taking more time then personal best than that person is slower.

Here, Gregor and Isabelle taking more time, so, they ran slower than their personal best.