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PIT_PIT [208]
3 years ago
13

If it takes 3 men 5 hours to dig 12 holes, how many hours does it take for 3 men to dig 84 holes?

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Answer:

Hence it will take 35hours

Step-by-step explanation:

Let the time it took to dig hole be x

Ley the number of holes be n

Using the relationship x = kn (direct relationship)

if it takes 3 men 5 hours to dig 12 holes, hence;

when x = 5, n = 12

k = x/n

k = 5/12

To get how many hours it take for 3 men to dig 84 holes, then;

when n = 84, x = ?

x = 5/12 * 84

x = 5 * 7

x = 35hours

Hence it will take 35hours

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