Question

Sam can paint a house in 5 days by himself, while Betty can paint the same house in 20 days. How long would it take Sam and Betty to paint the house together?

Answer 1

4 days?? @superhelp101

Answer 2

i doubt it

Answer 3

should be
\[\frac{5\times 20}{5+20}\] if that is 4 then you are right

Answer 4

then reduce?

Answer 5

yeah then compute

Answer 6

its 4

Answer 7

really ? ok then you win good work !

Answer 8

100/25=4

Answer 9

looks good to me
not too hard was it?

Answer 10

nope!