There are 14 groups of days are in 1 week.
Step-by-step explanation:
To find : How many groups of days are in 1 week ?
Solution :
We know that,
1 week = 7 days
1 day = 1/7 week
1/2 day = 1/2 x 1/7 week
1/2 day = 1/14 week
That means there are 14 groups of days are in 1 week.