Officer on Horseback

[@billmei]

Hey Sal, Thanks for doing these videos! I really appreciate what you do, and I love the calculus and finance videos. You have been a great help to me and I cannot thank you enough. I hope you have an awesome day!

[@arinshrivastava1000]

I did d1=distance column moves when officer is going forward, d2=distance column moves when officer is going back, first 100+d1=distance officer rode forward=3d1, or 100+d1=3d1, or 100=2d1, or d1=50 m, now 100-d2=distance officer moves back=3d2, or 100-d2=3d2, or 100=4d2, or d2=25, and d1+d2=total distance column moves, so 50+25=75 m

[@Jakers2009]

Thanks cortagio!

[@GenericCoder]

Thanks ya cortajaio.

[@UberCuba]

awesome brainteaser mate.

[@gregorybresnahan2161]

Hi Sal, When 2Vt1 is subtracted from 3Vt1, wouldn’t the answer be just V? Thanks!

[@cinquain0]

That video was amazing

[@momosquid9625]

Thanks for everything, that's some mind blowing problems even though they are all logic and simple math rules. WEW!

[@daegudoctor]

Is this helpful for SAT?..or beyond SAT level ? thx a lot

[@bramas4]

Ok. When the horseman has moved 100 meters forward, the column has moved only 33-1/3 meters. But when the horseman moves back, they have moved only 11-1/9 meters forward before he reaches the back of the column :) So they move 44-4/9 meters the entire time. You can tell I don't like algebra....

[@arinshrivastava1000]

Gwendolyn Ram no he doesn’t move 100 m forward, he goes 100 m+distance the column moves

[@momosquid9625]

@@arinshrivastava1000 yea true the horseman is moving while the column is also moving along side so you take the sum.

[@momosquid9625]

Thanks cortagio!