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Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles per
hour, and Brianna works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles,
how long will it take Adam and Brianna working together to complete the classroom floor?
  • a)
    26 hrs. 44 mins.
  • b)
    26 hrs. 40 mins.
  • c)
    13 hrs. 20 mins.
  • d)
    13 hrs. 18 mins.
  • e)
    12 hrs. 45 mins.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Adam and Brianna plan to install a new tile floor in a classroom. Adam...
Because Adam and Brianna are working together, add their individual rates to find their combined rate:
50 + 55 = 105 tiles per hour
The question asks how long it will take them to set 1400 tiles.
Time = Work / Rate = 1400 tiles / (105 tiles / hour) = 40/3 hours = 13 and 1/3 hours = 13 hours and 20 minutes
The correct answer is C.
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Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles perhour, and Brianna works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles,how long will it take Adam and Brianna working together to complete the classroom floor?a)26 hrs. 44 mins.b)26 hrs. 40 mins.c)13 hrs. 20 mins.d)13 hrs. 18 mins.e)12 hrs. 45 mins.Correct answer is option 'C'. Can you explain this answer?
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Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles perhour, and Brianna works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles,how long will it take Adam and Brianna working together to complete the classroom floor?a)26 hrs. 44 mins.b)26 hrs. 40 mins.c)13 hrs. 20 mins.d)13 hrs. 18 mins.e)12 hrs. 45 mins.Correct answer is option 'C'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles perhour, and Brianna works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles,how long will it take Adam and Brianna working together to complete the classroom floor?a)26 hrs. 44 mins.b)26 hrs. 40 mins.c)13 hrs. 20 mins.d)13 hrs. 18 mins.e)12 hrs. 45 mins.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles perhour, and Brianna works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles,how long will it take Adam and Brianna working together to complete the classroom floor?a)26 hrs. 44 mins.b)26 hrs. 40 mins.c)13 hrs. 20 mins.d)13 hrs. 18 mins.e)12 hrs. 45 mins.Correct answer is option 'C'. Can you explain this answer?.
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