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Water in a canal 5.4m wide …

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Water in a canal 5.4m wide and 1.8 m deep is flowing with a sped of 25 km / h How much area will it irrigate In 40 min if 10 cm standing water is required?

    • Posted by Mansi Kukreti 6 years, 4 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Sia ? 6 years, 4 months ago

    According to the question,we have the following information.

    Water flow in 1 hr = Area of cross-section {tex}\times{/tex} Speed of water

    {tex}= 5 \cdot 4 \times 1 \cdot 8 \times 25000 \mathrm { m } ^ { 3 }{/tex}=54×18×250

     Water flow  in 40  minutes

    {tex}= 54 \times 6 \times 500 \mathrm { m } ^ { 3 }{/tex}

    Irrigated area {tex}\times \frac { 10 } { 100 } = 54 \times 6 \times 500{/tex}

    Irrigated area {tex}= 54 \times 6 \times 500 \times 10{/tex}

    {tex}= 1620000 \mathrm { m } ^ { 2}{/tex}

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