Class 7 Exam  >  Class 7 Questions  >  The temperature at 12 noon was 10 degree cele... Start Learning for Free
The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night?
Most Upvoted Answer
The temperature at 12 noon was 10 degree celecius above zero. If it de...
Problem Statement:

The temperature at 12 noon was 10 degree Celsius above zero. If it decreases at the rate of 2 degree per hour until midnight, at what time would the temperature be 8 degree below zero? What would be the temperature at midnight?

Solution:

Given:
- Temperature at 12 noon = 10 degree Celsius above zero
- Rate of decrease = 2 degree per hour
- Temperature at midnight = 8 degree below zero

Let's first calculate the number of hours from 12 noon to midnight.

Number of hours = 24 - 12 = 12 hours

Calculating the time when temperature would be 8 degree below zero:
To calculate the time when the temperature would be 8 degree below zero, we need to calculate the decrease in temperature from 10 degree Celsius to 8 degree Celsius.

Decrease in temperature = 10 + 8 = 18 degree Celsius
Time taken to decrease = Decrease in temperature / Rate of decrease = 18 / 2 = 9 hours

Thus, the temperature would be 8 degree below zero after 9 hours from 12 noon.

Time when temperature would be 8 degree below zero = 12 noon + 9 hours = 9 pm

Calculating the temperature at midnight:
To calculate the temperature at midnight, we need to calculate the decrease in temperature from 12 noon to midnight.

Decrease in temperature = Rate of decrease x Number of hours = 2 x 12 = 24 degree Celsius

Thus, the temperature at midnight would be:
Temperature at midnight = Temperature at 12 noon - Decrease in temperature
Temperature at midnight = 10 - 24 = -14 degree Celsius

Final Answer:
- Time when temperature would be 8 degree below zero = 9 pm
- Temperature at midnight = -14 degree Celsius
Community Answer
The temperature at 12 noon was 10 degree celecius above zero. If it de...
-2• celcius ?
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
Explore Courses for Class 7 exam

Top Courses for Class 7

The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night?
Question Description
The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night?.
Solutions for The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? defined & explained in the simplest way possible. Besides giving the explanation of The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night?, a detailed solution for The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? has been provided alongside types of The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? theory, EduRev gives you an ample number of questions to practice The temperature at 12 noon was 10 degree celecius above zero. If it decreases at the rate of 2 degree per hour until midnight at what time would the temperature be 8 degree below zero? What would be the temperature at mid night? tests, examples and also practice Class 7 tests.
Explore Courses for Class 7 exam

Top Courses for Class 7

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev