SOLUTION: if ram can paint a room alone in 15 hours . tigether ram and shyam can paint the same room in 6 hours.how much time would shyam aline take a paint the room?
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Question 1124783: if ram can paint a room alone in 15 hours . tigether ram and shyam can paint the same room in 6 hours.how much time would shyam aline take a paint the room? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Ram’s rate of painting:
[ 1 room ] / [ 15 hrs ]
Let Shyam’s rate =
[ 1 room ] / [ t hrs ]
Their rate working together:
[ 1 room ] / [ 6 hrs ]
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Add their rates working alone
to get their rate working together
Multiply both sides by
Working alone, Shyam takes 10 hrs
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Check:
OK
