Answer:
2.22 hours
Explanation:
If Sally can paint the office by herself in 5 hours, we can say that in one hour she paints 1/5 of the office.
On the other hand, Lucy paints the office in 4 hours, which means that, in 1 hour she paints 1/4 of the office.
Therefore, to know how much they would paint per hour working together, we are going to sum up the fractions they paint per hour:
Therefore, working together they will paint 
of the office in one hour.
Now we can establish a rule of three: if they paint 0.45 of the office in 1 hour, how long (x) will it take them to paint 1.0 of the office?
And therefore 
Therefore, it will take them 2.22 hours to paint the office working together.
France, Germany, United Kingdom
This statement is true. The IQ or <span>intelligence quotient</span><span> is the score obtained by means of various standardized tests designed to obtain an estimate of a person's general intelligence. The score is obtained by comparing the performance of a person compared to their age group or adults compared to their educational level. <span>Evaluations are carried out for various reasons, such as knowing the development of a child, or knowing if the person has the ability to perform a task.
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I hope my answer can help you.
Answer:
Proactive interference
Explanation:
Proactive interference occurs when the old memories interfere with new information to restrain. Due to proactive interference, a person finds difficulties to store the new information because of the interference of old memories. It is not common phenomena but it occurs with everyone in their lifetime.
For example when you learned the name of Asian countries and after that, you might learn the name of the African country's name and you recall the names of African countries name you would probably miss the name of both Asian and African countries name.
Thus due to proactive interference, most people are not able to recall the new information because of similar information they learned before.
