Home/ Questions/Q 8789
Next
Answered
Eesha
  • 7
Asked: 2021-03-16T06:56:42+00:00 In:

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?

  • 7

NCERT Solutions for Class 7 Mathematics Chapter 1
Important NCERT Questions
Class vii Math Chapter 1 Integers Exercise 1.3
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 6

2020-2021cbsechapter 1class7integersmathematicsncert
Share

    3 Answers

    1. In 10 hours the temperature would be decreased by 10*5 = 50°C

      • 5

    2. -10 degree centigrade

      • 4
    3. Best Answer

      Given: Present room temperature = 40°C
      Decreasing the temperature every hour = 5°C
      Room temperature after 10 hours = 40°C + 10 x (–5°C )
      = 40°C – 50°C
      = – 10°C
      Thus, the room temperature after 10 hours is – 10°C after the process begins.

      Class 7 Maths Exercise 1.3 Questions 6, 7, 8, 9

      for more answers vist to:
      https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-1/

      • 4
    Leave an answer

    Leave an answer

    Browse