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While flying over the Pacific, an airplane makes a 25° turn

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While flying over the Pacific, an airplane makes a 25° turn  [#permalink]

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New post 05 Aug 2013, 08:26
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While flying over the Pacific, an airplane makes a 25° turn to the right to avoid a storm. If, as a result, the airplane is traveling in a direction 5° east of north, in what direction was it originally flying?

(a) 30° west of north
(b) 30° east of north
(c) 20° west of north
(d) 20° east of north
(e) 5° west of north

These direction problems are confusing, Could anyone explain with the help of diagram.
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Re: While flying over the Pacific, an airplane makes a 25° turn  [#permalink]

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New post 05 Aug 2013, 08:34
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If after a turn of 25° you are 5°NEast, with a 20° turn you would be perfectly pointing at north. So you were, before the turn, 20° to the other side (West).

(c) 20° west of north

Refer to the image.
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Re: While flying over the Pacific, an airplane makes a 25° turn  [#permalink]

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New post 05 Aug 2013, 08:42
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Gian wrote:
While flying over the Pacific, an airplane makes a 25° turn to the right to avoid a storm. If, as a result, the airplane is traveling in a direction 5° east of north, in what direction was it originally flying?

(a) 30° west of north
(b) 30° east of north
(c) 20° west of north
(d) 20° east of north
(e) 5° west of north

These direction problems are confusing, Could anyone explain with the help of diagram.


5 degree east of north ==> the angle will start from north side toward east making an angle of 5 degree
whatever direction is after OF ...angle will start from there towards direction which is before OF

(a) 30° west of north
ANGLE starts from north towards west making an angle of 30
(b) 30° east of north
angle starts from north towards east making an angle of 30
(c) 20° west of north
angle starts from north towards west making an angle of 20 (this is correct in this case as the final direction is 5 degree east of north as shown)
(d) 20° east of north
angle starts from north towards east making 20
(e) 5° west of north
angle starts from west towards west making 5

just you have to remember the direct north/south/east/west

hope this helps
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Re: While flying over the Pacific, an airplane makes a 25° turn  [#permalink]

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New post 29 Jul 2017, 15:58
Gian wrote:
While flying over the Pacific, an airplane makes a 25° turn to the right to avoid a storm. If, as a result, the airplane is traveling in a direction 5° east of north, in what direction was it originally flying?

(a) 30° west of north
(b) 30° east of north
(c) 20° west of north
(d) 20° east of north
(e) 5° west of north


let due north=90°
current bearing=90-5=85°
original bearing=85+25=110°
110-90=20° west of north
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Re: While flying over the Pacific, an airplane makes a 25° turn  [#permalink]

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New post 08 Apr 2019, 10:35
Kaplan official solution

If a plane turns to the right, its course will change in a clockwise direction. So the original direction of this plane must have been counter-clockwise from its current direction. We can eliminate answer choices (B) and (D) on that premise. Since it turned 25 degrees, its original direction must have been 25 degrees from where it is now. The only answer choice that is both 25 degrees from the present direction and is counterclockwise is answer choice (C).
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Re: While flying over the Pacific, an airplane makes a 25° turn   [#permalink] 08 Apr 2019, 10:35
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