Question

it takes mandy 4 hrs to put up paneling in a room. omar takes 5 hrs to do the same job. how long would it take them, working together, to panel the room?

Answer 1

in one hour mandy can do how much of the work???

Answer 2

doesn't say.

Answer 3

Hint:

M = Mandy's Hours
O = Omar's Hours

\[Time = \frac{M \times O}{M + O}\]

Answer 4

as he compltes the job in 4 hours
so he will do 1/4th of the job in one hour

Answer 5

\[Time = \frac{4 \times 5}{4 + 5}\]

Answer 6

i see, thank you hero and sheg.

Answer 7

similarly omar completes the job in 5 hours so he will complete 1/5th of the job in one hour

Answer 8

By the way, when I say "Time", I mean in hours.

Answer 9

got it, thanks.