5 people can do a job in 10 days how long will it take 15 men

It's 3.33.

Mathematically, to work it out, take 5 x 10 = 50. 50 days is how long it would take for 1 person to do the job. Then take 50/15. 50 days divided by 15 people = 3.33

Just in case you have to show your work.

(constant)(number of people)(time) = 1 job

(constant)(5)(10) = 1 job

constant(50) = 1 job

constant = 1/50

so you now have a new formula

(1/50)(number of people)(time) = 1 job

if you change the number of people to 15 men, then you get

(1/50)(15)(time) = 1 job

3/10(time) = 1

time = 10/3

where time is taken in days

so it will take

10/3 days to finish the job with 15 men.

that's exactly 3 days and 8 hours.

5 goes into 15 3 times so divide 10 by 3 and you get 3.33,

then if your translating the amount into days and hours you know there's 3 full days and 0.33 of a day which is a third so you divide 24 by 3 equaling 8 so 3 days and 8 hours

5/15 = 1/3 1/3 x 10 = 3.33

If 15 men are doing the job, it will tale 1/3 of the time it would take 5

1/3 x 10 days = 3⅓ days

Too many chefs spoil a broth, but in math terms 2.5 days

3.33333333--- Days