Question

The completion times for three runners in a 100-yard dash are 9.75 seconds, 9.7 seconds, and 9.675 seconds. Which is the winning time?

Answer 1

`9.675` seconds is least and is the winning time

Explanation:

Winning time is one which is the least.

As given completion times are up to three places of decimals, let us make all these times up to three places of decimals. Not adding zeros to right of a decimal number does not change its value.

`9.75=color(white)(XXXXXX)9.750`
`9.7=color(white)(XXxXXXX)9.700`
`9.675=color(white)(XXxXXX)9.675`

It is apparent that `9.675` seconds is least and is the winning time.