Help!!!!!!!! with gen maths questions plz!!!!!!!!!!!!!!!!!!! (1 Viewer)

[Linda7]

hi, can someone help me with these questions plz
its about time zones and stuff

1)A plane leaves Perth(32 [FONT=&quot]º[/FONT]S, 120 [FONT=&quot]º[/FONT] E) on an 8 hour flight to Cape town(33 [FONT=&quot]º[/FONT] S, 15 [FONT=&quot]º[/FONT]E) at 3:00 pm Wednesday

a) At what time will the plane arrive in Cape town?




2) A flight leaves Melbourne (40 [FONT=&quot]º[/FONT]S, 150 [FONT=&quot]º[/FONT] E) at 5.00pm Tuesday on an 18 hour flight to Frankfurt (50 [FONT=&quot]º[/FONT] N, 15 [FONT=&quot]º[/FONT]E). Calculate the time of arrival in Frankfurt if it is:

A) daylight saving time in Melbourne

B) daylight saving time in Frankfurt.



plz could someone help, im having trouble with these questions thx

 

[Linda7]

ne 1?

 

[Zak Ambrose]

is it during DST?

 

[riah666]

1) first add 8hrs to 3.pm
so u would arrive at 11pm perth time
Then the hard part figure the amount of time between perth and cape town, look at time zone diagram (http://www.time.gov/images/worldzones.gif) and u'll find perth is +8 and cape town is +2 so we need to - 6 hrs as were ahead which would make it 5.p.m
2) use the same concept, just adding minus for day light savings.

Good luck

 

[Kelly47]

For the first one to figure out the time difference, you don't look at the map. From the longitude/latidude given you figure out the difference. 15 degrees = 1 hour (we calculate this on the E or W, not the S or N). 120-15 = 105. 105 divided by 15 = 7 hours difference.
So, to calculate the time, you add on the 8 hours in which the flight takes, then add on the 7 hours (or minus, depending on the E/W thing. I can't remember now lol, take a look at a map).

With 2, you do the same thing as riah said, but with dst.

 

[Linda7]

thanx guys

 

[PC]

1. A plane leaves Perth (32ºS,120ºE) on an 8 hour flight to Capetown (33ºS,15ºE) at 3:00 pm Wednesday. At what time will the plane arrive in Capetown?

First, draw a diagram. It always helps.

Next, work out time difference.
Angle = 120 ÷ 15 = 105°
Time difference = 105 ÷ 15 = 7 hours

Now work out the times. I like to use a two-way table.
Time of departure (in Perth) = 3pm Wed
Time of departure (in Capetown) = 3pm – 7h (time difference)
= 15h – 7h
= 8h
= 8am Wed
.: Time of arrival (in Capetown) = 8am + 8h (length of flight)
= 8h + 8h
= 16h
= 4pm Wednesday

2. A flight leaves Melbourne (40ºS,150ºE) at 5:00pm Tuesday on an 18 hour flight to Frankfurt (50ºN,15ºE). Calculate the time of arrival in Frankfurt if it is:
(a) daylight saving time in Melbourne
(b) daylight saving time in Frankfurt

Angle = 150 – 15
= 135°
Time difference = 135 ÷ 15
= 9 hours

(a) If daylight saving time applies in Melbourne, then:
Time of departure (in Melbourne) = 5pm Tue (summer time)
= 4pm Tue (standard time)
Time of departure (in Frankfurt) = 4pm – 9h (time difference)
= 16h – 9h
= 7h
= 7am Tue
Time of arrival (in Frankfurt) = 7am + 18h (time of flight)
= 7h + 18h
= 25h
= 1h (next day)
= 1am Wed

(b) If daylight saving time applies in Frankfurt, then it won't apply in Melbourne, so:
Time of departure (in Melbourne) = 5pm Tue (standard time)
Time of departure (in Frankfurt) = 5pm – 9h (time difference)
= 17h – 9h
= 8h
= 8am Tue
Time of arrival (in Frankfurt) = 8am + 18h (time of flight)
= 8h + 18h
= 26h
= 2h (next day)
= 2am Wed (standard time)
= 3am Wed (summer time)

Hope that helps.