mairah14 mairah14

12-09-2022
Mathematics

contestada

Hi can anybody help with (a)? I'm struggling with this question

Hi can anybody help with a Im struggling with this question class=

Respuesta :

ch03rry ch03rry

12-09-2022

Answer: 26.6 mins.

Explanation: 35 mins (the mean time) x 20 adults = 700 mins in total of all adults
34.6 mins (new mean time) x 21 adults = 726.6 mins in total of all adults.

726.6 mins - 700 mins = 26.6 mins

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