Math, asked by grewalsingh8790, 11 months ago

A contractor engaged 360 men to construct a road in 28 days due to emergency he had to finish the work extra men would be required to finish the work in time

Answers

Answered by Nereida
17

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Let's solve it by two methods.

Unitary Method :

If 360 men can construct a road in 28 days.

Then, in one day 360 × 28 men can construct a road.

And in 7 days 360 × 28/7 men can construct a road.

That is, 360 × 4 = 1440 men.

So, To complete complete the work on time the total men required are = 1440 - 360 = 1080 men.

Proportional method :

Let the number of men that will complete the task in 28 days be x.

This is an indirect proportion.

So, x/28=360/7

So, x = (360 × 28)/7

So, x = 1440 men.

Hence, the total men requiredto complete the task of constructing the road in 28 days is= 1440 - 360 = 1080 men.

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Answered by Anonymous
23

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Given:

A contractor engaged 360 men to construct a rod in 28 days, Due to emergency he had to fish work extra men would be required to finish the work in India.

Find:

Find how much extra workers would be required to finish in time.

Calculations:

\sf\rightarrow{1\:week\:=\:7\:days}

\sf\rightarrow{28\:days\:=\:360\:men}

\sf\rightarrow{360\times4\:=\:1440}

\sf\rightarrow{1440-360\:=\:1080}

Using proportional method:

Let "y" be number of men in 28 days.

\sf\rightarrow\dfrac{y}{28}=\dfrac{360}{7}

\sf\rightarrow\ y =\dfrac{360\times28}{7}

\sf\rightarrow{y=1440}

Therefore, the number of extra men would be required to finish the work in time = 1440.

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