Question

the temperature at1.00pm was 10degree Celsius above zero if it decreases at the rate of 2degree Celsius per hour until 10pm at what would the temperature be 6degree Celsius below zero ​

Answer 1

now we take that it is 10 celcius

now there is 9 hrs so the total exact drop is after completion is -8

then for -6 we have to decrease hour so at9pm it is -6celsius