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किसी 200 मीटर लम्बे तथा 150 मीटर चौड़े टैंक में 0.3 मी `xx` 0.2 मी चौड़े पाईप से 20 किमी/घंटे की चाल से पानी गिरता हें पानी का तल 8 मी. ऊंचाई उठने में स

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किसी 200 मीटर लम्बे तथा 150 मीटर चौड़े टैंक में 0.3 मी `xx` 0.2 मी चौड़े पाईप से 20 किमी/घंटे की चाल से पानी गिरता हें पानी का तल 8 मी. ऊंचाई उठने में समय ज्ञात करें?
A. 50
B. 120
C. 150
D. 200
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Correct Answer - D
Let the no. of hours be `x`
`implies(0.3xx0.2xx20000)xx x=200xx150x8`
`impliesx=(200xx150xx8)/(3xx2xx200)=200` hrs.
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