Guest Posted June 9, 2010 Report Share Posted June 9, 2010 A ship is battling against the tide to safety. It uses 9.5 gallons of fuel every hour and sails at 23 mph. It is 34 miles from safety but the flow against it is 12 mph. It has 30 gallons of fuel left. Will it reach safety ? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 Yes, by the skin of it's teeth. It's gaining 11 mph, which will take 3 hours and 5.5 minutes to arrive. It will take approximately 29.75 gallons of gas to get there. Whew! That was a close one!!! Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 Yes, by the skin of it's teeth. It's gaining 11 mph, which will take 3 hours and 5.5 minutes to arrive. It will take approximately 29.75 gallons of gas to get there. Whew! That was a close one!!! that was indeed a close one.. (i mean your answer) but still not the correct one Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 With a little less fuel used, 29.36 of the 30 gallons consumed. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 (edited) With current working against the ship it will not get the same gas milage. I figured you will only go 11 miles on 9.5 gallons of gas that brings your gas milage down to about 1.158 m/g and you have 30 gallons that will get you 34.75 miles With a little less fuel used, 29.36 of the 30 gallons consumed. Edited June 9, 2010 by fchild Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 (edited) The ship moves at 11mph, and 9.5gph. the ship has 30 gallons, meaning it has a maximum of (approx) 3.16 hours of fuel left. moving at 11mph, we can move about (approx) 34.7 miles before running out of fuel. aka we made it alive. also, what kind of "ship" (makes me think grand scale) uses "gallons" of fuel? Maybe i just dont know ship architecture today. Edited June 9, 2010 by novah Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 The ship may be battling against the tide at the start of the problem, but the tide will slacken in time. 6 hours after full tide (approx.) it will be on the turn, so, my answer is that if the figure is the maximum tidal flow, then as the flow eases, it will make more headway, and thus make the harbour easily. If this isn't the maximum flow, then the ship won't make it, but that's the fault of the captain. He has tide tables, and he should wait outside the tidal flow until slack water, and come in as the tide is making. Then the flow will be with him!!!! Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 Not sure what it might be using the Fuel for...but as a sail boat it will be able to keep going even if the fuel runs out. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 A ship is battling against the tide to safety. It uses 9.5 gallons of fuel every hour and sails at 23 mph. It is 34 miles from safety but the flow against it is 12 mph. It has 30 gallons of fuel left. Will it reach safety ? the ship is sailing at 23mph, which means that is how fast it is going regardless of the tide against it. So it will make it to safe harbour easily in 1 hr 29 mins and using ~14 gallons of fuel Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 How can the tide be coming from the shore? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 We should be using knots to measure the ship's speed! Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 I think the boat will have .64 gallons of fuel left assuming the tide is constant (which it cannot possibly be over such a time) Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 How can the tide be coming from the shore? If it goes toward the shore, I figure it has to come back some time. Also, no one said "safety" is on the shore Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 It is "Sailing", thus doesn't need fuel. They will make it. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 9, 2010 Report Share Posted June 9, 2010 A ship is battling against the tide to safety. It uses 9.5 gallons of fuel every hour and sails at 23 mph. It is 34 miles from safety but the flow against it is 12 mph. It has 30 gallons of fuel left. Will it reach safety ? Yes Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 10, 2010 Report Share Posted June 10, 2010 Is the ship affected by the use of the fuel? does it get lighter, and maybe can move faster or get more miles out of each gallon? I don't know much about ships... Quote Link to comment Share on other sites More sharing options...
0 Guest Posted June 14, 2010 Report Share Posted June 14, 2010 many people find it correctly..well, it was an easy one..the answer is ..Yes, with 0.63 gallons left over! Quote Link to comment Share on other sites More sharing options...
Question
Guest
A ship is battling against the tide to safety. It uses 9.5 gallons of fuel every hour and sails at 23 mph. It is 34 miles from safety but the flow against it is 12 mph. It has 30 gallons of fuel left. Will it reach safety ?
Link to comment
Share on other sites
16 answers to this question
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.