Makakuha ng maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Ang aming platform ay idinisenyo upang magbigay ng mabilis at eksaktong sagot sa lahat ng iyong mga tanong.

painter 1 can paint the room in 12 hours while painteer 2 can paint the same room in 10 hours.how long will it take to paint the room together? using linear equation



Sagot :

painter 1 can paint a room in 12 hrs
so in 1 hrs he can paint 1/12 part of a room
painter 2 can paint a room in 10 hrs
so in 1 hrs he can paint 1/10 part of a room
together in1 hrs they can paint       (1/12 + 1/10)     part of a
room    =        ( 5 + 6)/60  =  11/60        >     LCM = 60
thus  no. of hrs to complete the room  =    60/11  ~  5.45hrs