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1 हेक्टेयर क्षेत्रफल वाले छत से 5 सेमी. वर्षा हुई । एकत्रित वर्षा के पानी का आयतन `m^(3)` में ज्ञात करें?
A. 75
B. 750
C. 7500
D. 75000

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Correct Answer - B
`implies` मैदान का क्षेत्रफल
`1.5` hectares `=1.5xx10000m^(2)`
`implies 15000m^(2)`
1 hectare `=10000m^(2)`
`implies` वर्षा का स्तर `=` पानी का स्तर `=5cm=5/100m`
`:.` एकत्रित जल का आयतन
`implies 15000xx5/100=750m^(3)`

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