OASC Aptitude Test Question
Thread Starter
Join Date: Feb 2006
Location: Wantage
Age: 35
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
OASC Aptitude Test Question
Hi guys i have a question, 'A helicopter takes off at 1000hours, flies 90 miles and lands on an oil rig. Average outbound speed is 150mph. The return journey is expected to be 20% faster. If the helicopter stays 15mins what time will it arrive back?' i got 1205 using some s=d/t calculations is this right? are you allowed paper to write notes in the test?
Join Date: Mar 2002
Location: UK
Posts: 87
Likes: 0
Received 0 Likes
on
0 Posts
joshii,
I make the answer 1121, as follows:
If the Helicopter travels 90 miles at 150 mph that flight will take 36 minutes. (90/150 =0.6hrs)
The helicopter is in the rig for 15 minutes.
20% faster on the return leg is 180mph, (150 x 1.2). 90/180 = 0.5hrs
Therefore total time in 36+15+30 = 81 minutes = 1hr 21min
This calculation simply involves s=d/t formula and is fairly 'do-able' in your head but as far as using paper in the OASC selection, I've no idea I'm afraid!
Hope this helps & good luck.
I make the answer 1121, as follows:
If the Helicopter travels 90 miles at 150 mph that flight will take 36 minutes. (90/150 =0.6hrs)
The helicopter is in the rig for 15 minutes.
20% faster on the return leg is 180mph, (150 x 1.2). 90/180 = 0.5hrs
Therefore total time in 36+15+30 = 81 minutes = 1hr 21min
This calculation simply involves s=d/t formula and is fairly 'do-able' in your head but as far as using paper in the OASC selection, I've no idea I'm afraid!
Hope this helps & good luck.
