If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for?

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? what would be the formula to figure it out thanks

Top 2 Answers

A few days ago

i <3 him.

Favorite Answer

Sally takes 240 minutes.

John takes 640 minutes.

sooo…

240 + 640 = 880

now you divide by two because the time that john lacks, sally makes up for.

880 divided by 2 is 440 minutes.

i hope this is right.

its kinda like finding the average.

i think.

im only in PRE-algebra so i dont do soo great but can someone tell me if this is right or not?

if it is i will be veryy proud… 😀

A few days ago

Anonymous

OK, in 6 hours the two together will paint 2 and a half houses–that Sally is a whiz.

So: 2.5 x = 6

x = 6 divided by 2.5

x = 2 hours, 24 minutes.

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If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for?

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for?

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