## faraz1998 3 years ago 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?

1. faraz1998

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

2. faraz1998

3. faraz1998

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

4. faraz1998

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

5. faraz1998

A B C OR D does not consist of that?

6. coolmath977

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

7. faraz1998

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

8. faraz1998

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

9. faraz1998

10. coolmath977

1 7/8

11. faraz1998

these r the choices : 3 5/8 hour 3 3/4 hour 3 5/7 hour 4 hour

12. coolmath977

yea

13. faraz1998

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

14. coolmath977

cuz the fastest guy takes 3 hrs on his own

15. faraz1998

So i dont know what to pick?

16. coolmath977

17. sauravshakya

opps 30/8

18. sauravshakya

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

19. sauravshakya

right?

20. faraz1998

So then the answer is D

21. sauravshakya

I think I did @Hero

22. faraz1998

So would the answer be D?

23. sauravshakya

It is sure that they will take more than 3 hours

24. sauravshakya

cause they need to wash and detail both cars

25. Kaederfds

3 3/4 hour

26. sauravshakya

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

27. coolmath977

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

28. sauravshakya

Ya thats the right answer @Kaederfds

29. coolmath977

If its one car it would be 1 7/8

30. sauravshakya

@Hero read the question very very very carefully

31. sauravshakya

PLZ

32. coolmath977

in the end they mentioned "both cars"

33. coolmath977

Hero could you help me with my question