Final answer:
The question is missing significant information to calculate the exact time Holly takes to complete 5 paintings. The concept of the question involves calculating a proportion of time and multiplying it by the number of paintings, but without Ella's painting time, the answer cannot be determined from the provided options.
Step-by-step explanation:
The question seems to imply that Ella takes a certain amount of time to complete a painting, and Holly takes three quarters of that time. However, the exact time Ella takes is not provided in the question. If we assume that 'hours' represents the time Ella takes to complete one painting, then Holly would take ¾ of that time for one painting. To find out how long Holly takes to complete 5 paintings, we would need to calculate the following:
Time for Holly to complete one painting = ¾ of Ella's time. Let's denote Ella's time as 'E'.
So, Time for Holly for one painting = ¾ * E
Then, Time for Holly to complete 5 paintings = 5 * (¾ * E)
Because the necessary information to calculate the exact time is missing, we cannot provide a definitive answer from the options given (a) 2 hours, (b) 3 hours, (c) 4 hours, or (d) 5 hours. To solve this, we need the exact time it takes Ella to complete one painting.