Riddle of the Day - Page 4

**Herk7769** · 02-13-2013, 11:19 PM

Several PMs, but so far no winner.

FYI, 90 MPH is not correct.

Jtant · 02-13-2013, 11:32 PM

It is impossible you cannot go fast enough to average 60 miles per hour if you only go 30 MPH for the first half of the drive. JT

**Herk7769** · 02-13-2013, 11:33 PM

Quote:

Originally Posted by Jtant

It is impossible you cannot go fast enough to average 60 miles per hour if you only go 30 MPH for the first half of the drive. JT

Yes, this part has been solved. Scroll down to see the current challenge.

New riddle - Same as the old riddle except:

Drive first half at 45 MPH - How fast on the second half to average 60 MPH.

A FREE Herkbrary DVD to first one to PM me the correct answer.

**Herk7769** · 02-13-2013, 11:50 PM

To save time:

Incorrect answers so far:
180 MPH
75 MPH

Jtant · 02-14-2013, 07:00 AM

Obviously did not read entire thread will do that tonight after I go make the donuts. Does your riddle obey conventional wisdom that average rate of speed equals distance divided by time or are we on a merry-go-round? JT

Oakman · 02-14-2013, 07:08 AM

60 MPH on the second half.

XL 378 · 02-14-2013, 08:30 AM

Call Good SAMs Road Side Assistance.

**ependydad** · 02-14-2013, 08:32 AM

Quote:

Originally Posted by XL 378

Call Good SAMs Road Side Assistance.

LOL- I've got a ten-spot mailed to whoever actually does!

**Herk7769** · 02-14-2013, 08:33 AM

OK, guys.

Made a mistake last night in a MPH conversion.

The correct answer IS 90 MPH and QCCowboy was first with that answer.
His DVD will be sent as soon as I get a mailing address.

Again assume a 2 mile track to keep the math simple.
D=VT (or T=D/V or V=D/T)

1 mile at 45 MPH takes (1/45)= 0.2222... hours

2 miles at 60 MPH takes (2/60) = 0.03333... hours

Time left to finish race = 0.01111... hours.

Find V = 1/0.01111... = 90 MPH

DnD · 02-14-2013, 08:41 AM

Quote:

Originally Posted by herk7769

OK, guys.

Made a mistake last night in a MPH conversion.

The correct answer IS 90 MPH and QCCowboy was first with that answer.
His DVD will be sent as soon as I get a mailing address.

Again assume a 2 mile track to keep the math simple.
D=VT (or T=D/V or V=D/T)

1 mile at 45 MPH takes (1/45)= 0.2222... hours

2 miles at 60 MPH takes (2/60) = 0.03333... hours

Time left to finish race = 0.01111... hours.

Find V = 1/0.01111... = 90 MPH

Never argue math with the QCCowboy! That man got this sh*t down!

Congrats!!!

**Herk7769** · 02-14-2013, 08:47 AM

I was switching back and forth minutes to hours and fat fingered an error into the calculation.

Since it was a multiple of 15 I did not question it last night.

This morning I pulled up some of the PMs that included their calculations and I realized 90 was the correct answer. I had my scribble sheet next to the computer I used last night and found my mistake in an hour to minute conversion that made it back into the final equation.

RVChick · 02-14-2013, 08:58 AM

So QCCowboy won the CD? Cool!!

**Herk7769** · 02-14-2013, 09:02 AM

Quote:

Originally Posted by RVChick

So QCCowboy won the CD? Cool!!

He would have won the prize for the first one too.
(Had there actually been a prize!)

DnD · 02-14-2013, 09:34 AM

Quote:

Originally Posted by herk7769

He would have won the prize for the first one too.
(Had there actually been a prize!)

So herk...Send QC both the CD and the decoder ring! Me thinks us normal humans will need one to decifer the cd!

**wmtire** · 02-14-2013, 09:39 AM

Ok, here is one of my favorites:

You are inside a perfectly squared room where each wall, the ceiling and even the floor are mirrors. There is nothing else in the room. How many reflections can you see if you're facing one direction. You are able to look straight ahead, up, down, left and right.

**Herk7769** · 02-14-2013, 09:44 AM

Quote:

Originally Posted by wmtire

Ok, here is one of my favorites:

You are inside a perfectly squared room where each wall, the ceiling and even the floor are mirrors. There is nothing else in the room. How many reflections can you see if you're facing one direction. You are able to look straight ahead, up, down, left and right.

I would think there would be an infinite number of reflections regardless of where you turned your head.

**wmtire** · 02-14-2013, 09:54 AM

Quote:

Originally Posted by herk7769

I would think there would be an infinite number of reflections regardless of where you turned your head.

You would think that, but the answer is not infinity. I wish I had something cool to award like you did for this...... for whomever get's it correct.

TURBS · 02-14-2013, 09:57 AM

Quote:

Originally Posted by wmtire

You would think that, but it's simpler than that. The answer is not infinity. I wish I had something cool to award like you did for this for whomever get's it correct.

New tires?
I need 4 265/75/16 e rated .

Answer is 5

DnD · 02-14-2013, 09:58 AM

Quote:

Originally Posted by wmtire

You would think that, but it's simpler than that. The answer is not infinity. I wish I had something cool to award like you did for this...... for whomever get's it correct.

You see 1 reflection...yourself.

**wmtire** · 02-14-2013, 10:01 AM

Quote:

Originally Posted by f1100turbo

New tires?
I need 4 265/75/16 e rated .

Answer is 5

Wow, I better be careful what i wish for. A thousand dollar set of tires may make me hate this riddle.

Answer is not 5

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