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geniusboy [140]
3 years ago
13

10 men working for 6 days can complete 5 copies of a book if there are 8 men working to complete 4 copies of the book how many d

ays will it take
Mathematics
2 answers:
Musya8 [376]3 years ago
6 0

Answer:

6 Days

Step-by-step explanation:

Practically:

It takes,

10 Men ( complete ) 5 Copies --> 6 Days

So, 2 Men can complete 1 copy in 6 days.

Question asks us :

8 Men ( complete ) 4 Copies --> X Days

It will take 6 days because the proportion of men to copies is same as the first equation.

Theoretically:

10 Men 5 Copies 6 Days

8 Men   4 Copies  X Days

> 6/X = 8/10 ( If men decrease the number of days increase. So, it is an indirect proportion. ) . 5/4 ( If copies decrease the number of days decrease as well. So, it is a direct proportion. )

> 6/X = 8/10 . 5/4

> 6/X = 40/40

> 6/X = 1

<h2>> X=6</h2><h2></h2><h2><em>I hope it will be understood.</em></h2><h2><em>If I have any inaccuracies please let me know.</em></h2><h2><em>Have a nice day and never stop questioning!</em></h2><h3><em></em></h3>

galina1969 [7]3 years ago
3 0

Answer:

The number of days required for 8 men working to complete 4 copies of the books is 6 days

Step-by-step explanation:

Given As

The number of men (M1) = 10

The number of working days (D1) = 6  days

The work done (W1) = 5 copies

Again,

The number of men (M2) = 8

The number of working days (D2) = D2 days

The work done (W2) = 4 copies

∵  \frac{Men\times Day}{Work} = constant

So , \frac{M1\times D1}{W1} = \frac{M2\times D2}{W2}

or, \frac{10\times 6}{5} = \frac{8\times D2}{4}

Or, \frac{60}{5} = \frac{8\times D2}{4}

Or, D2 = \frac{12\times 4}{8}

∴  D2 = 6 days

Hence The number of days required for 8 men working to complete 4 copies of the books is 6 days    Answer

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