Question

24 worker can build a wall in 15 days how many days will 9 worker take to build a similar wall​

Answer 1

Answer:

9 workers take 40 days to build the similar wall.

Answer 2

A n s w e r

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G i v e n

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• 24 worker can build a wall in 15 days

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F i n d

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• Number of days required to build the similar wall by 9 workers

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S o l u t i o n

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• Let "d" be the days in which 9 workers can build the wall

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As the total work needed to build the wall will be same thus we would calculator the total work

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Case I [ With 24 workers ]

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$\underline{\bold{\texttt{Total work :}}}$

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Workers × Days

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• Workers = 24

• Days = 15

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➜ 24 × 15

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➜ 360 units ⚊⚊⚊⚊ ⓵

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Case II [ With 9 workers ]

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$\underline{\bold{\texttt{Total work :}}}$

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Workers × Days

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• Workers = 9

• Days = d

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➜ 9 × d

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➜ 9d units ⚊⚊⚊⚊ ⓶

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As in boths cases workers need to build similar wall hence the total work will be same

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Thus ,

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Equation ⓵ = Equation ⓶

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➜ 360 = 9d

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➜ $\sf d = \dfrac { 360 } { 9 }$

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➨ d = 40

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• Hence 9 workers will take 40 days to build the similar wall