Answer:
Paintings does Mark have left after four days of selling his paintings are 6.
Step-by-step explanation:
Given : Mark has 64 paintings.
To find : How many paintings does Mark have left after four days of selling his paintings?
Solution :
Total number of paintings = 64
The first day he sells th of them,
i.e.
Number of painting left 64-16=48.
The second day he sells one-half of the paintings he started the day with.
i.e.
Number of painting left 48-24=24.
The third day he sells one-half of the paintings he started the day with.
i.e.
Number of painting left 24-12=12.
The fourth day he sells one-half of the paintings he started the day with.
i.e.
Number of painting left 12-6=6.
Therefore, paintings does Mark have left after four days of selling his paintings are 6.