# Mathematics

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an aircraft's reading shows
time 8:55 at distance travelled 957km
time 9:07 at distance travelled 1083

calculate distance travelled in km
calculate the average speed of aircraft in km/h

(for the 1st question 1083-957= 126km)

(the second one should i add 1083+957km then divided it by both times minuses or the both times added to get the average speed)

• Mathematics - ,

http://www.jiskha.com/display.cgi?id=1245085073

• Mathematics - ,

I will assume you want the avg speed between 8:55 and 9:07. We cannot calculate the average speed for the whole trip since we don't know the starting time.

average speed = total distance/total time
= 126/(12/60) , time from 8:55 to 9:07 = 12 min = 12/60 hrs
= 630 km/h

• Mathematics - ,

how did you get 12 min from 8:55 to 9:07?? and is the 1st answer that i have correct... because the link says otherwise

• Mathematics - ,

from 8:55 to 9:00 is 5 minutes
from 9:00 to 9:07 is 7 minutes, so .....

Your question "calculate distance travelled in km" is not clear
Do you want the total distance travelled, that would be 1083
between 8:55 and 9:07 it would be 126 km

Overall, a very poorly worded question.

• Mathematics - ,

that is what was asked it never said total distance it said calculate distance traveled in km

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