You are viewing our Forum Archives. To view or take place in current topics click here.

Math Riddle (Answer reveal included)Posted:

XeX_Troy
  • Challenger
Status: Offline
Joined: Jun 09, 20154 Year Member
Posts: 108
Reputation Power: 5
An athlete is able to jump FOREVER. However, every time that she jumps she gets a bit more tired, and every jump goes 1/2 as far as her prior jump. Now, for her very first jump, she goes 1/2 of a foot.
On her second jump, she goes 1/4 of a foot, and so on and so forth.


How many jumps does it take for her to travel 1 foot?


Answer reveal here!

She will never get to the 1 foot mark because you keep adding smaller and smaller amounts!
#2. Posted:
Nick
  • Vantage
Status: Offline
Joined: Jul 07, 20154 Year Member
Posts: 3,750
Reputation Power: 14279
Motto: We're stacking up We're piling high We've gone too far to recognise salvation This is civil isolation
Got one for you, but I won't be as nice as you and won't reveal the answer. Did this one in my AP stats class.

How can you add eight 8's to get the number 1,000? (only use addition)
#3. Posted:
DeluxeHazard
  • Christmas!
Status: Offline
Joined: Jul 28, 20136 Year Member
Posts: 14,540
Reputation Power: 895
I am giving my word that I did not look at the answer before because I have heard of similar riddles like this. The answer is never. When the person has "x" distance left to jump, she jumps half of that distance. So when she need to jump half a foot she jumps a fourth of a foot, when she needs to jump a fourth of a foot she jump an eight of a foot, and this continues infinitely since every time she jumps half of the necessary distance to finish a whole foot. I remember that Vsauce posted a great video explaining. Here is the link to it: [ Register or Signin to view external links. ]
#4. Posted:
Pint
  • TTG Addict
Status: Offline
Joined: Oct 25, 20136 Year Member
Posts: 2,442
Reputation Power: 103
Skyjacked wroteGot one for you, but I won't be as nice as you and won't reveal the answer. Did this one in my AP stats class.

How can you add eight 8's to get the number 1,000? (only use addition)
Pretty simple. 888 + 88 + 8 + 8 + 8
Jump to:
You are viewing our Forum Archives. To view or take place in current topics click here.