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Ex 1.3, 6 - A certain freezing process requires that room temperature

Ex 1.3, 6 - Chapter 1 Class 7 Integers - Part 2

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Question 2 A certain freezing process requires that room temperature be lowered from 40 C at the rate of 5 C every hour. What will be the room temperature 10 hours after the process begins? Initial temperature = 40 C Room temperature decreases at 5 C per hour Temperature change in 1 hour = 5 C Temperature change in 10 hours = 5 10 C = 50 C Room temperature after 10 hours = Initial temperature + Temperature change in 10 hour = 40 + ( 50) = 40 50 = ( 40 + 50) = (50 40) = 10 C Room temperature after 10 hours = 10 C

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.