Question

A coach divided his team into two groups of equal size.

Answer 1

Applying the percentages, and considering that 70% of the first group drinks at least 2 glasses of water a day, it is found that 0.725 = 72.5% of the team drinks at least 2 glasses of water a day.

The team is divided into two equal groups, hence, each represents 50%.

The percentages associated with drinking at least 2 glasses of water a day is:

• 70% of 50%(first group)
• 75% of 50%(second group)

Hence, applying the weighed percentage, the total percentage is:

$T = 0.7(0.5) + 0.75(0.5) = 0.725$

0.725 = 72.5% of the team drinks at least 2 glasses of water a day.

A similar problem is given at brainly.com/question/1517088