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A certain household has consumed 250 uni...

A certain household has consumed 250 units of energy during a month. How much energy is this in joule?

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The correct Answer is:
This enegy is `9xx10^(8)` joule.
1 unit of energy = `1kWh=3.6xx10^(6)J`
`therefore` 250 units of energy = `250xx3.6xx10^(6)J`
`=900xx10^(6)J`
`=9xx10^(8)J`
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