Question

For drinks during the day, Peter has a cup of hot coffee, at a temperature of about 90 ºC, and a cup of cold mineral water, with a temperature of about 5 ºC. The cups are of identical type and size and the volume of each drink is the same. Peter leaves the cups sitting in a room where the temperature is about 20 ºC. What are the temperatures of the coffee and the mineral water likely to be after 10 minutes?
a. 70 ºC and 10 ºC
b. 90 ºC and 5 ºC
c. 70 ºC and 25 ºC
d. 20 ºC and 20 ºC
Best answer will be rated 5 stars and marked as brainliest. No spams here. Spams will be reported.

Answer 1

Answer:

c) 70 and 25

Step-by-step explanation:

Temp. of hot coffee after 10 min.=90-20

=70(here the hot becomes cool so the temp. decreases)

Temp of the cold mineral water=20+5

=25(here the cold mineral water becomes a little warmer so it decreases)

So, it matches with c

Please mark me as the brainliest