Question

Plzz show workings while giving the answer​

Answer 1

`\huge\boxed{\sf 4\ minutes\ 1.5\ seconds}`

Explanation:

3 minutes 59.1 seconds = (3*60) + 59.1 seconds = 180 + 59.1 seconds

=> 239.1 seconds

`\rule[225]{225}{2}`

4 minutes 3.8 seconds = (4*60) + 3.8 seconds = 240 + 3.8 seconds

=> 243.8 seconds

`\rule[225]{225}{2}`

4 minutes 1.6 seconds = (4*60) + 1.6 seconds = 240 + 1.6 seconds

=> 241.6 seconds

`\rule[225]{225}{2}`

Mean = Sum of data / No. of Data

Mean = 239.1 + 243.8 + 241.6 / 3

Mean = 724.5 / 3

Mean = 241.5 seconds

In Minutes and Seconds:

= 241.5 / 60 = 4.025 minutes

= 4 minutes + 0.025 minutes

= 4 minutes + (0.025 * 60) seconds

= 4 minutes 1.5 seconds

`\rule[225]{225}{2}`

Hope this helped!

~AH1807