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A certain freezing process requires that …

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A certain freezing process requires that room temperature be lowered from 50°C at the rat e of 3°C every hour. What will be the room temperature 15 hrs after the process begins?

    • Posted by Farhan Tanvir 3 years, 1 month ago

    CBSE > Class 07 > Mathematics
    • 1 answers

    Sia ? 3 years, 1 month ago

    Temperature of the room in the beginning = 50oC
    Temperature after 1 hour
    = 50oC -1 {tex}\times{/tex} 3oC = 50oC - 3oC = 47oC
    Similarly, temperature of the room after 15 hours
    = 50oC - 10 {tex}\times{/tex} 3oC = 50oC - 30oC = 20oC

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