A company is to paint 3000 metre in 30 days. The boss hires 50 men and they work 8hrs per day. After 20 days, 1200m is completed. How many more men does the boss have to employ to complete on time if each man work 10 hours per day ?

Question

anonymous · Answer

@One098

one098 · Answer

@sleepyjess

one098 · Answer

@paki

sleepyjess · Answer

Mk, I'm gonna try this, but if it doesn't work out work out, I will tag someone else :)

sleepyjess · Answer

First, I'm thinking to find the number of meters a day, then number an hour?

paki · Answer

tell me... its a direct proportion or inverse....?

anonymous · Answer

excuse me @HatcrewS do you by any chance can read and speak chinese

anonymous · Answer

@paki i dont know, is it direct ?

anonymous · Answer

Hello.

anonymous · Answer

hi there

sleepyjess · Answer

@OpiGeode , if you are not going to contribute to the question, please do not spam this post.

mathmath333 · Answer

if more men work the number of days the work would complete early

if the more hour they work daily the work would complete early so 

$m~~\alpha\dfrac{1}{w}$

$h ~~\alpha\dfrac{1}{w}$

so 

$h \times m~~\alpha\dfrac{1}{w}$

hence 
$h \times m~~=\dfrac{k}{w}$

$k~~=8\times 50\times 1200$

now they have done work of $1200$ the work need to be done is 

$3000-1200=1800$

so
$h \times m~~=\dfrac{k}{w}$

$10 \times m~~=\dfrac{8\times 50\times 1200}{1800}$

find $m$

anonymous · Answer

thank you sir @mathmath333