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IgorC [24]
3 years ago
10

If 5 men dig a hole in 5 hours, how long will it take 2 men to dig half a hole?

Mathematics
2 answers:
natali 33 [55]3 years ago
8 0

Answer:

2 men will take 5/4 hrs to dig half a hole.

Step-by-step explanation:

5 men do 1 unit of work in 1 hour. 1 man does 1/5 unit of work in 1 hour. 2 men do 2/5 units of work in 1 hour. Thats why 2 men will take 5/2 hours to dig 1 hole and take 5/4 hours to dig half a hole. :)

kirill115 [55]3 years ago
5 0

Answer:

Step-by-step explanation:

5 men do 1 unit of work in 1 hr. 1 man does 1/5 unit of work in 1 hr. 2 men do 2/5 units of work in 1 hr. Therefore 2 men will take 5/2 hours to dig 1 hole and take 5/4 hrs to dig half a hole.

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In a given radioactive nuclide, we can easily find the mass number, mass of proton and neutron by subtracting the mass of proton from the mass number.  The mass number, mass of proton and mass of neutron of the radioactive nuclide are 131, 56 and 75 respectively.

<h3>Properties of an atom</h3>

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In a given atom, the mass number of an atom comprises of the mass of proton and mass of neutron. The atomic number of the element or atom is equal to the mass of the proton.

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Learn more on mass of an element here;

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