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A certain freezing process requires that room temperature be lowered from 40ºC at the rate of 5ºC every hour. What will be the room temperature 10 hours

after the process begins?

SCERT Class 7 Telangana, Maths Chapter 1 Integers


Room temprature will decrease to -10
(as 5°c per hour
for 10 hours= 50°c .
40°c-50°c= -10°c)
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