Aunt's Ol' Jalopy
Math brain teasers require computations to solve.
After visiting my Great Aunt Annie, I travelled home in her old jalopy. The car was old and battered, it had a leak from the petrol tank, and I was stuck in second gear.
This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel.
At the start of the journey I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour.
Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it.
How far was it from my Great Aunt's to my home?
This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel.
At the start of the journey I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour.
Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it.
How far was it from my Great Aunt's to my home?
Comments
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Posted by Melanmel16 on Mar 28, 2012 Great aunt Annie lol |
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Posted by Babe on Apr 24, 2012 I did not even try. Did not like math in school and certainly was not going to bust my brain on this one. How about a real quiz that doesn't take us back to the class room!!  |
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Posted by HABS2933 on Apr 24, 2012 Great teaser, easily solvable. |
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Posted by bestgirl on Apr 24, 2012 Good one. |
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Posted by dsjt on Apr 24, 2012 Where did your aunt find a "jalopy" that jets 20 MPG? I wished my vehicle could get that. |
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Posted by xdbtcp on Apr 24, 2012 I figured 20 miles per gallon, and you had 10 gallons, so you went 200 miles...  |
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Posted by xdbtcp on Apr 24, 2012 Guess I shoulda read "the fuel tank lost fuel at the rate of half a gallon per hour."  |
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Posted by gghali on Apr 24, 2012 Great teaser! Lots of fun. |
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Posted by wordmama on Apr 24, 2012 I love math, even though it's not my field. I wanted to try it, but I couldn't figure out how to reconcile the mpg, the mph, and the fuel loss. The explanation was excellent; I'm disappointed in myself that I couldn't see it on my own! |
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Posted by FatHead on Apr 24, 2012 That was awesome. I'm glad I had as much practice as I did with high-school algebra and word problems. |
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Posted by bradon182001 on Apr 24, 2012 Nice teaser, never hurts to practice a little math to keep the mind active. |
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Posted by auntiesis on Apr 24, 2012 I love math problems, but this one was way too easy. But I still loved it.  |
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Posted by luluw5 on Apr 24, 2012 this is supposed to b a brain teaser! not homework!  |
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Posted by DarylK on May 25, 2012 Ah, I shoud have read the question throughly. |
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