Question

If 5 men take 8 days to type 10 books, apply the principle of variation to find out how many days 8 men will take to type 2 books?

Answer 1

Answer:

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Answer 2

Given: If 5 men take 8 days to type 10 books.

To find: How many days 8 men will take to type 2 books.

Solution:

According to the question, 5 men can type 10 books in 8 days. So one man could type 10 books in

$8*5=40 days$

Hence, one man could type one book in

$\frac{40}{10} = 4 days$

Now 8 men would be able to type 1 book in

$\frac{4}{8} = 0.5 days$

So 8 men would type 2 books in

$\frac{4}{8} * 2 = 1 day$

In one day, 8 men will be able to type 2 books.

Therefore, 8 men will take 1 day to type 2 books.