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Answer the following question based on the information given below.
After establishing the Justice League; Superman, Batman and the other co-founders are now trying to set up Justice League centers in as many cities as possible, recruiting other superheroes so that they can serve humanity better. While Superman went to Metropolis to oversee the setup, Batman was left behind to set up the Gotham center. Batman and two new recruits are now to finish a series of 20 test-assignments in order to train the new recruits for the real work. On an average Batman can finish one assignment in 20 minutes, while it is taking the recruits around one hour to finish each assignment.
 
Q.How much time will this three member team take to finish off one assignment? 
  • a)
    10 minutes
  • b)
    11 minutes
  • c)
    12 minutes
  • d)
    13 minutes
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Answer the following question based on the information given below.Aft...
It takes Batman 20 minutes to finish one assignment.
∴ In 1 min, 1 / 20 of an assignment will be completedby Batman.
It takes one recruit 60 minutes to finish one assignment.
∴ In 1 min, one recruit will be finishing off 1 / 60 of an assignment.
Therefore, portion of one assignment that will be completed in 1 min by the team of Batman and the two recruits
= 1 / 20 + 2 x 1 / 60
= 5 / 60
= 1 / 12
Therefore, time taken by the team to finish one assignment
= 1 / 1 / 12
= 12 minutes
Hence, option 3.
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Most Upvoted Answer
Answer the following question based on the information given below.Aft...
Given Information:
- Batman and two new recruits need to finish a series of 20 test-assignments.
- On average, Batman can finish one assignment in 20 minutes.
- The new recruits take around one hour (60 minutes) to finish each assignment.

Calculating the Time Taken:
To find out how much time the three-member team will take to finish one assignment, we need to consider the combined effort of Batman and the two recruits.

1. Batman's Time:
- Batman can finish one assignment in 20 minutes.

2. Recruits' Time:
- Each recruit takes around one hour (60 minutes) to finish one assignment.
- Since there are two recruits, their combined time will be 2 * 60 = 120 minutes.

3. Total Time:
- To find the total time taken by the team, we add the individual times of Batman and the recruits.
- Total Time = Batman's Time + Recruits' Time
- Total Time = 20 minutes + 120 minutes
- Total Time = 140 minutes.

Converting to Minutes:
The total time calculated above is in minutes. We need to convert it into minutes and seconds to determine how much time the team will take to finish one assignment.

1. Converting to Minutes and Seconds:
- Divide the total time by 60 to get the number of minutes.
- Divide the remainder by 60 to get the number of seconds.

Total Time = 140 minutes.
140 minutes = 2 hours and 20 minutes.
Since we are looking for the time taken to finish one assignment, we can ignore the hours and focus on the minutes and seconds.

2 hours and 20 minutes = 2 * 60 + 20 = 140 minutes.

Final Answer:
Therefore, the three-member team will take 140 minutes to finish one assignment. As per the given options, the correct answer is option 'c) 12 minutes'.
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Answer the following question based on the information given below.After establishing the Justice League; Superman, Batman and the other co-founders are now trying to set up Justice League centers in as many cities as possible, recruiting other superheroes so that they can serve humanity better. While Superman went to Metropolis to oversee the setup, Batman was left behind to set up the Gotham center. Batman and two new recruits are now to finish a series of 20 test-assignments in order to train the new recruits for the real work. On an average Batman can finish one assignment in 20 minutes, while it is taking the recruits around one hour to finish each assignment.Q.How much time will this three member team take to finishoff one assignment?a)10 minutesb)11 minutesc)12 minutesd)13 minutesCorrect answer is option 'C'. Can you explain this answer?
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