Math, asked by 1234516, 1 year ago

42 people could finish this task in 15 days then 30 people for how many days to complete this task

Answers

Answered by siddhartharao77
1
42:15::30:x

x = 42*15/30

   = 21.

It will take 21 days to complete the task.
Answered by hemantsuts012
0

Answer:

Concept:

Time and labor issues are important because there is a relationship between the number of people doing the work, the number of days or time they take to complete the work, and the amount of work that is done.

Find:

42 people could finish this task in 15 days then 30 people for how many days to complete this task

Given:

42 people could finish this task in 15 days then 30 people for how many days to complete this task

Step-by-step explanation:

Time and labor issues are important because there is a relationship between the number of people doing the work, the number of days or time they take to complete the work, and the amount of work that is done.

Finished work = Number of people x Number of days

W = M x D

Here, the unit of work is man-days or man-hours. Time and work problems can be primarily divided into two types. This type involves problems where individuals work with varying effectiveness either together or in combination to complete a task. The second type involves problems that concern group effectiveness.

Suppose there are two people A and B who have been assigned the task of assembling a table. Work here refers to building a table. Also suppose that there is another person C who is charged with the task of damaging the table. Now, the work done by C is called as negative work because C effectively reduces the amount of work done by A and B.

21 days is the answer,

it can be calculated this way to to verify,

It takes 15 days to complete a work by = 42 men

In 1 day number of men will complete this work =15×42

In 21 day number of people can complete this work

=15× \frac{42}{21}

= 30 men

#SPJ2

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