Question

Naima takes 2 hours to clean up a room her sister take 1 hours and 30 minutes while her brother takes only 1 hour they started working together but after 18 minutes naimas brother and sister left she had to complete the rest of the work by herself how long did it take for the room to be cleaned up

Answer 1

Answer:

24 minutes

Step-by-step explanation:

after 18 minutes only .05 of the room is cleaned. now since its Naima doing it alone and she takes 120 minutes to clean 1 room therefore;

1 room needs 120 mins

0.05 room needs 120x0.05=6 minutes

6+18=24

hence 24 minutes

Answer 2

Answer:

Step-by-step explanation:

Yes