Question

Manny has to run 6 errands between 10 and 5 on Saturday. He must get a haircut, wash his car, buy stamps, rent a video, return a book to the library, and buy some groceries. Assume that each errand will take 30 minutes and that Manny will do only one errand per hour. Manny will stop for a lunch break between 12 and 1. Use the information in the drawing to figure out a way for Manny to accomplish all 6 tasks.

Answer 1

A. Describe two alternative orders in which Manny could complete his errands.
B. What if Manny had 7 errands instead of 6? What would he need to do to adjust for the extra errand?

Answer 2

@jim_thompson5910

Answer 3

where are you stuck on this?

Answer 4

I'm not sure how to start this.

Answer 5

Describe two alternative orders in which Manny could complete his errands.


if you think of the errands as A, B, C, D, E, F, G

then you can rearrange those errands in any order you like (eg: ABCDEFG or GFABCED)

list two different orders that haven't been written yet

Answer 6

oh sorry, it's A through F, not A through G

Answer 7

But the attachment shows what time each place is open so I have to order it to match when the places are open.

Answer 8

ok so not all orders will work

Answer 9

so prioritize the ones that close early (ie put them first) over the ones that don't close as early

Answer 10

make sense?

Answer 11

Also can lunch and an errand happen in the same hour?

Answer 12

probably not, so you might have to squeeze in two errands in one hour

Answer 13

then again, he could cut his lunch short easily

Answer 14

so anything is possible

Answer 15

Well in the problem it says "Assume that each errand will take 30 minutes and that Manny will do only one errand per hour."

Answer 16

ok then you have to put it in the lunch hour

Answer 17

Okay.
So I could do.
A:Video
B: Post Office
C: Barbershop
D: Library
E: Grocery
F: Car Wash
So one could be
B, D, A, C, F, E

Answer 18

Another could be
B, C, D, F, E, A

Answer 19

Is that right?

Answer 20

sorry one sec, got distracted

Answer 21

hmm I would swap E with C in both cases because E closes much earlier than C

Answer 22

E closes at 12am. E closes the latest out of every place.

Answer 23

oh 12 am, not 12 pm, nvm lol

Answer 24

my bad

Answer 25

then you could put that last if you wanted

Answer 26

Hahaa. I was confused for a sec there.

Answer 27

its ok, misread and thought things wrong for a sec, but everything looks good

Answer 28

Okay well now that part A is done how would you do part B?

Answer 29

if he had 7 errands instead of 6, he would have to either do 2 errands in one hour

or cut his lunch short so he could do that 7th errand during the lunch hour