A container contains water at temperature 80degree C.After every 10minutes,the change in temperature is -4 degree C.After howmuch time willthe temperature of water be 20 degree C
Answer :
Given : temperature of water is 80 C
And
After every 10 minutes,the change in temperature is - 4 C
Let there will be temperature change x times , So
80 - 4x = 20
4x = 60
x = 15
And
Every change is occurs in 10 minutes , So
15 ( 1) = 150 minutes or 2 hour 30 minutes will take to the temperature of water is 20 C ( Ans )
Given : temperature of water is 80 C
And
After every 10 minutes,the change in temperature is - 4 C
Let there will be temperature change x times , So
80 - 4x = 20
4x = 60
x = 15
And
Every change is occurs in 10 minutes , So
15 ( 1) = 150 minutes or 2 hour 30 minutes will take to the temperature of water is 20 C ( Ans )