Answer: 5 word per 25 sec
Step-by-step explanation:
1 word per 5 sec + 2 word per 10 sec +2 word +10 sec
For this case we have the following:
1 word for 5 seconds
2 words for 10 seconds
3 words for 15 seconds
4 words for 20 seconds
5 words for 25 seconds
6 words for 30 seconds
7 words for 35 seconds
and so on, successively, until you reach 12 words in 60 seconds
It is observed, that Casey takes 5 seconds to write a word.
When he has written 5 words, it takes 25 seconds.
Answer:
60 miles per hour.
Let r represent speed of wind blowing in miles per hour.
We have been given that the cruising speed of the plane was a constant 360 mph in air. The speed of the plane is the direction of wind would be .
The speed of the plane is the opposite direction of wind would be .
Distance covered in the direction of wind would be .
Distance covered in the opposite direction of wind would be .
Since both distances are same, so we will get:
Therefore, the wind is blowing at a rate of 60 miles per hour.
answer is c ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,