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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 Account Deleted 3 years, 7 months ago

CBSE > Class 07 > Mathematics

1 answers

Sia ? 3 years, 7 months ago

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

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