Arjun alone will take 9 hours to complete the work.
Work can be described as anything with an effect or outcome, which is often the desired or expected one. The fundamental concept of Time and Work is the same as it is in all Arithmetic topics, namely the principle of Proportionality.
Whenever the amount of work done remains constant, efficiency is inversely proportional to time.
Now, according to the question;
Let the total work done be 1 unit.
The work done by both Arjun and Maria in 1 hours = 1/4.24
The work done by Maria alone in 1 hours = 1/8
Thus, the work done by Arjun alone = 1/4.24 - 1/8.
= (8 - 4.24)/33.92
= 3.76/33.92 work in one hour
So, the total time by Arjun to finish the work alone is 33.92/3.76
Thus, the total time by Arjun to finish the work alone is 9 hours.
To know more about the work and time concept, here
https://brainly.com/question/13086625
#SPJ4
