TASK DEFINITION: In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
PROBLEM: Question: Mike wants his voice to travel faster, so he will speak in a room that is 
 Answer: warmer

SOLUTION: For a given medium such as air, sound has a slower speed at lower temperatures.

PROBLEM: Question: Andrew was showing Tim his underpowered phone, one day. The boys decided they wanted to go to a bookstore but needed directions, they both looked up directions on their phone, whose phone found directions faster? 
 Answer: Tim

SOLUTION: Compared with a less powerful device, a more powerful device can either do more work in the same time or do the same work in less time.

PROBLEM: Question: Mike noticed that more people in his group were living longer, because the food they had was 
 Answer: better

SOLUTION:
With better food and less chance of disease, the death rate fell.