Answer: After 14 hours, 740.74 kg of raw sugar will remain.
Step-by-step explanation: Given that the rate of change of the amount of raw sugar is proportional to the amount of raw sugar remaining.
Also, 1000 kg of raw sugar reduces to 800 kg of raw sugar during the first 10 hours.
We are to find the amount of raw sugar that will remain after another 14 hours.
Let x and y represents the rate of change of amount of raw sugar and the amount of raw sugar that left respectively.
Then, according to the given information, we have
Now, when y = 800, then x is given by
So, from equation (i), we have
That is,
After 14 hours, we have
Thus, after 14 hours, 740.74 kg of raw sugar will remain.