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Ten Men Take 4 Days to Complete the Task of Tarring a Road. How Many Days Would 8 Men Take?

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प्रश्न

Ten men take 4 days to complete the task of tarring a road. How many days would 8 men take?

योग
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उत्तर

Number of men Number of days
10 4
8 x

The more men, the fewer the number of days required to finish the work. 
So, the number of men and the number of days required to complete the work are inversely proportional to each other. 

`10/8 = "x"/4`

`=> "x" = (10 xx 4)/8`

⇒ x = 5

Thus, when 8 men are involved, 5 days will be required. 

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अध्याय 15.5: Miscellaneous Problems : Set 2 - Exercise [पृष्ठ १००]

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बालभारती Mathematics [English] Standard 7 Maharashtra State Board
अध्याय 15.5 Miscellaneous Problems : Set 2
Exercise | Q 2. | पृष्ठ १००

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