top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

How far was it from my Great Aunt's to my home?

+3 votes
492 views

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 km per hour and managed a paltry 20 km per litre of fuel.

At the start of the journey I had placed exactly 10 litres of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a litre 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?

posted Feb 12, 2015 by Pushpak Chauhan

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+3 votes
 
Best answer

150 miles.

I was travelling at 30mph at a rate of 20mpg, so I was using 1.5 gallons every hour for the driving itself.

I was also losing 0.5 gallon every hour. In total, I was using 2 gallons every hour.

Therefore to use all of the 10 gallons I started with, I travelled for 5 hours.

5 hours at 30mph is 150 miles.

answer Feb 12, 2015 by Vrije Mani Upadhyay



Similar Puzzles
0 votes

Last week I decided to cycle to my Grandmother's house.

On the first day, I cycled half of the distance.
On day 2, I cycled one half of the remaining distance.
On day 3, I cycled three quarters of the remaining distance.
On day 4, I cycled 10 kms.
On day 5 I cycled two thirds of the remaining distance and on the final day I cycled the remaining 5 kms.

How far is it to my aunt's house?

0 votes

Rohan and Sanya were out for a bike ride when the tyre on Rohan's bike burst.
They were 20 km from home, so they decided Rohan would walk back while Sanya would take the working bike, leave it further along the road and walk the rest of the way.
When Rohan reached the bike, he would ride it home.
If Rohan walks at 5 km/hr and rides at 12 km/hr and Sanya walks at 4 km/hr and rides at 10 km/hr, how far should Sanya ride the bike for both to arrive home at the same time?

0 votes

Distances from you to certain cities are written below.
BERLIN 200 miles
PARIS 300 miles
ROME 400 miles
AMSTERDAM 300 miles
CARDIFF ??? miles
How far should it be to Cardiff ?

+1 vote

Map of our town is represented in the map below:

enter image description here

If home is represented by the blue house and the store is represented by a red store, how many possible routes can we take to get from our house to the store?

...