SOLUTION: Joe the handyman was employed to fix house numbers onto the doors of 80 new houses in a row. He screwed digits on theur front doors, numbering them from 1 to 80. then he noticed th

Question 1088515: Joe the handyman was employed to fix house numbers onto the doors of 80 new houses in a row. He screwed digits on theur front doors, numbering them from 1 to 80. then he noticed that there were already houses numbered 1 to 64 in the street, so he had to replace all the numbers with new ones, 65 to 144. If he reused as many digits as possible (where he could use an upside down 6 as a 9 and vice versa), how many new digits must he have supplied.
Answer by ikleyn(52794) (Show Source): You can put this solution on YOUR website!
.
I can give you an advise and a direction.

Write the numbers on cards.

Pretend that you are Joe.

And make all this work, counting the cards.

In any case, you will have some pastime and entertainment.

This advice carries the same amount of sense as your request to us to solve this problem.

Good luck !!

RELATED QUESTIONS
a door breaks down 7 times per hour. cost of idle door time is $30 per hour. two... (answered by Theo)

Joe spent $2500 on garage doors. He paid 6% sales tax. What was the original cost of... (answered by ichudov)

Tripper lives in a house on a straight street. For years, there have been 16 houses on... (answered by mccravyedwin)

Joe and Al work together for 4 hours to fix a car. If joe works alone, he can fix the car (answered by ikleyn)

On a certain street, the house numbers incrementally increase on one side and come back... (answered by Edwin McCravy)

a student is hired by a city's maintenance department to paint houses numbers on the... (answered by edjones)

Bob can paint a small house in 8 hours. Joe could paint the same size house in 10 hours.... (answered by hamsanash1981@gmail.com)

the numbers on the houses on the north side of carlito street are consecutive odd... (answered by ikleyn,mccravyedwin,Alan3354)

I participated on a research that involves knocking on home doors to give out information (answered by stanbon)