Question

a weather forecaster says that the temperature is changing at the rate of 7degree Celsius. at that rate how long will it take for the temperature to reach 42 degree Celsius

Answer 1

if the time is in hour
see this:-

the temperature is increasing 7°c in 1 hour.
so from 0°c to 7°c it takes 1 hr

then time taken to reach 42°c
=42÷7=2

thus,2 hours is taken to reach 42°c


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