No time.........................as the wall is already Built.....................
20 hours
1 wall/10 men=1/10 wall per man 1/10 wall per man/10 hours=1/100 wall per man per hour 5 men x 1/100 wall per man per hour=5/100 or 1/20 wall per hour 1 wall/ 1/20th wall per hour =20 hours per wall ☺☺☺☺
I think 20 Hours ?
If it took eight men ten hours to build a wall, how long would it take four men to build it?
We have a 100-meter piece of ribbon.
If it takes one second to cut it into a 1-meter strip how long would it take to cut the entire ribbon into 1-meter strips?
One painter can paint a wall in 30 minutes, another painter needs 15 minutes for the same size wall. How long will they take to paint the wall working together?
