Ex 1.2

Ex 1.2, 1

Ex 1.2, 2 (a) Important

Ex 1.2, 2 (b)

Ex 1.2, 3 (i)

Ex 1.2, 3 (ii) Important

Ex 1.2, 4

Question 1 5 (a) Deleted for CBSE Board 2025 Exams

Question 1 5 (b) Important Deleted for CBSE Board 2025 Exams

Question 1 5 (c) Deleted for CBSE Board 2025 Exams

Question 1 5 (d) Important Deleted for CBSE Board 2025 Exams

Question 1 5 (e) Important Deleted for CBSE Board 2025 Exams

Question 1 5 (f) Deleted for CBSE Board 2025 Exams

Question 1 5 (g) Important Deleted for CBSE Board 2025 Exams

Question 1 5 (h) Deleted for CBSE Board 2025 Exams

Question 2 Deleted for CBSE Board 2025 Exams You are here

Question 3 Important Deleted for CBSE Board 2025 Exams

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Question 5 Deleted for CBSE Board 2025 Exams

Chapter 1 Class 7 Integers

Serial order wise

Last updated at April 16, 2024 by Teachoo

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