![queennajas](/avatars/20663.jpg)
queennajas
23.06.2020 •
Mathematics
four men working together can create a trench in 42 days. they begin the job but one man works only half days. How long will it take to complete the trench?
Solved
Show answers
More tips
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- D Dating, Love, Relationships How Long Can Love Last?...
- S Society and Politics Is It Fact or Fiction? Let s Talk About Anton Chekhov s Pseudonym...
- F Food and Cooking How to Find Your Zip Code?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- S Style and Beauty How to Apply Foundation Correctly?...
- S Sport How to Choose Tennis Rackets?...
Answers on questions: Mathematics
- M Mathematics The regular price of a double roll of wallpaper is $24. during a may sale, wallpaper was discounted 20%. what was the sale price of a double roll of wallpaper?...
- M Mathematics Red Light Green light Blue Light Violet Light Yellow Light What is the probability of Charles switching on the violet light followed by Thomas getting a multiple of 3 on the die?...
- B Biology Primers have been designed to bind to the sections of DNA shown below in three individuals Based on the image, which of ne following statements is true? G C G C CAG C C TATT AGU...
Ответ:
48 days
Step-by-step explanation:
Four men working together can create a trench in 42 days.
Find the number of man-days to complete the job
4*42 = 168 man-days
They begin, but one man works only half-days.
How long will it take to complete the job?
Let d = no. days to complete the trench
d(3 + 0.5) = 168
d(3.5)=168
3.5d = 168
d = 168/3.5
d = 48 days
Ответ:
Delta should help u with that