Question

Michael can wash and detail his car in 3 hours, and Jeanne can wash and detail her car in 5 hours. If they work together, how long will it take them to wash and detail both cars?

Answer 1

These are the answers:
3 5/8 hour
3 3/4 hour
3 5/7 hour
4 hour

Answer 2

Whic his the answer?

Answer 3

So is it A B C or D. ..?

Answer 4

15/8 ... That isnt one of the choices

Answer 5

A B C OR D does not consist of that?

Answer 6

in one hour, michael can wash and detail 1/3 of the car, whereas jeanne only does 1/5 of the car. add them up and its 8/15. 1/8/15=15/8
the answer is 15/8 hours

Answer 7

yes i do. It is 2 1/8 but that isnt one of the answers?

Answer 8

The choices are
3 5/8 hour
3 3/4 hour
3 5/7 hour
4 hour

Answer 9

my bad 1 1/8 hr

Answer 10

1 7/8

Answer 11

these r the choices :

3 5/8 hour
3 3/4 hour
3 5/7 hour
4 hour

Answer 12

yea

Answer 13

Man.. i see.. dangg it. Thank you Hero and Coolmath977

Answer 14

cuz the fastest guy takes 3 hrs on his own

Answer 15

So i dont know what to pick?

Answer 16

and tell your teachher

Answer 17

opps 30/8

Answer 18

because they need to wash and detail both cars means they need to wash and detail 2 cars

Answer 19

right?

Answer 20

So then the answer is D

Answer 21

I think I did @Hero

Answer 22

So would the answer be D?

Answer 23

It is sure that they will take more than 3 hours

Answer 24

cause they need to wash and detail both cars

Answer 25

3 3/4 hour

Answer 26

Fine.... I may be wrong...... where am I wrong?

Answer 27

oh right@Hero they need to detail two cars. So one car should be 1 7/8 and two cars would be 3 3/4

Answer 28

Ya thats the right answer @Kaederfds

Answer 29

If its one car it would be 1 7/8

Answer 30

@Hero read the question very very very carefully

Answer 31

PLZ

Answer 32

in the end they mentioned "both cars"

Answer 33

Hero could you help me with my question