Maya and Reginald are installing hardwood flooring. Maya can install flooring in a room in 4 hours. Reginald can install flooring in a room

Question

Maya and Reginald are installing hardwood flooring. Maya can install flooring in a room in 4 hours. Reginald can install flooring in a room in 3 hours. How long would it take them if they worked together?

in progress 0
Calantha 5 years 2021-08-31T12:14:57+00:00 1 Answers 18 views 0

Answers ( )

  1. Ben
    0
    2021-08-31T12:16:26+00:00
    Reply

    Answer:

    1 hour 42 minutes approx

    Step-by-step explanation:

    Given data

    Mayas work rate= 1/4 room per hour

    Reginald work rate= 1/3 room per hour

    Let the total time taken for both of them be T

    Hence their combined work rate

    1/4+1/3= 1/T

    3+4/12=1/T

    7/12=1/T

    T= 12/7

    T= 1.7 hours

    Hence it will take them 1 hour 42 minutes approx

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )