Learn Ncert All Solutions

from a handpicked tutor in LIVE 1-to-1 classes

from a handpicked tutor in LIVE 1-to-1 classes

# 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?

**Solution:**

The present temperature of room = 40°C

Decrease in temperature after every hour = 5°C

Temperature of room after 10 hours

Decrease in temperature can be exressed as - 5°C

= 40°C + 10 × (-5°C)

= 40°C + - 50°C

= -10°C

Thus, the room temperature after 10 hours is -10°C, after the process begins.

**☛ Check: **NCERT Solutions for Class 7 Maths Chapter 1

**Video Solution:**

## 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?

NCERT Solutions Class 7 Maths Chapter 1 Exercise 1.3 Question 6

**Summary:**

If a certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour, the room temperature 10 hours after the process begins will be -10°C.

**☛ Related Questions:**

- Find Each Of The Following Products A 3 X 1 B 1 X 225
- Verify The Following A 18 X 7 3 18 X 7 18 X 3 B 21 X 4 6 21 X 4 21 X 6
- I For Any Integer A What Is 1 X A Equal To Ii Determine The Integer Whose Product With 1 Is A 22 B 37 C 0
- Starting From 1 X 5 Write Various Products Showing Some Pattern To Show 1 X 1 1

Math worksheets and

visual curriculum

visual curriculum