# I Q Test for 50+'rs

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• 07-22-10, 05:49 PM
DnvrFox
I Q Test for 50+'rs
If you have seen this before, please refrain from explaining the problem until some folks who haven't seen it before have an opportunity to post their responses. Hopefully, everyone gets it right!!

You bike 10 miles at 20 miles per hour and 10 miles at 10 miles per hour. What is your average speed?
• 07-22-10, 05:57 PM
steve0257
Well, if you don't stop I come up with 13.3 mph. But wait, there's the DQ, and the A&W, and a donut shop, and a coffee shop, and a bakery. I'm going to be out here all day.
• 07-22-10, 05:58 PM
Pamestique
Aaaghhhh math problems... I didn't llike them when young!

15...
• 07-22-10, 06:04 PM
i got it! i got it!

the bike color is red.
• 07-22-10, 06:10 PM
Cleave
Hi,

10 miles at 20 MPH = 30 minutes
10 miles at 10 MPH = 60 minutes
30 min + 60 min = 90 min = 1.5 hours
20 miles / 1.5 hours = 13.33 MPH

Unless my analysis is faulty, steve0257 wins. :)
• 07-22-10, 06:13 PM
Some advertisement was over the part where you asked what is your ? If asking for average speed, I get 13.3333333333333333333333333333333333333333333333333333333333333333333333333333333mph. If you want to know how old the rider is, it is 63.:)
• 07-22-10, 06:15 PM
DnvrFox
Quote:

Originally Posted by Cleave
Hi,

10 miles at 20 MPH = 30 minutes
10 miles at 10 MPH = 60 minutes
30 min + 60 min = 90 min = 1.5 hours
20 miles / 1.5 hours = 13.33 MPH

Unless my analysis is faulty, steve0257 wins. :)

No, wrong. The color of the bike is white.
• 07-22-10, 06:16 PM
nancyj
Mannnnn.......... now I know why I need to buy a bike computer.
• 07-22-10, 06:20 PM
ilikepcs
I have to go with 13.3 (as noted above)
• 07-22-10, 06:23 PM
BengeBoy
Uphill, or down?
• 07-22-10, 06:24 PM
DnvrFox
Quote:

Originally Posted by BengeBoy
Uphill, or down?

You must be an engineer!!
• 07-22-10, 06:57 PM
GeneO
The answer, as always, is my average was 18 mph and I am sticking to it (please don;t revoke my PhD :D )
• 07-22-10, 07:00 PM
Retro Grouch
You rode 20 MPH going to the cafe but could only manage 10 MPH on the way back. The difference is obviously Pi.
• 07-22-10, 07:02 PM
bjjoondo
Have no idea, I was just to busy enjoying the "SMILES"! ;)
• 07-22-10, 07:34 PM
Whatever the answer is, I'm sure it is way faster than I went today, even doping my Garmin was no help.
• 07-22-10, 08:10 PM
BlazingPedals
Are those metric hours, or imperial?
• 07-22-10, 08:32 PM
Retro Grouch: what I have never been able th figure out--somebody said Pi r square. I have always thought Pi r round.
• 07-22-10, 08:37 PM
footboard
I was told there would be no math when I joined this forum.
• 07-22-10, 08:59 PM
JanMM
Quote:

Originally Posted by footboard
I was told there would be no math when I joined this forum.

"There is no match for this forum." That's what newcomers are told.
• 07-22-10, 09:50 PM
bgary
20 mph + 10 mph = 30 mph

Where did you guys go to school?

EDIT:

I'm sorry, that is TOTAL speed. For AVERAGE speed:

30 mph / 10 miles = 3 mph
• 07-22-10, 10:19 PM
rm -rf
Why you can't make it up on the descent:

You climb the 1 mile hill at 5 mph. Then you go back down 1 mile at 100,000 mph. What's your average speed?

Drag over the line to
highlight the answer---> 9.9995 mph = 2 miles / (.2 hrs +.00001 hrs) <--
• 07-22-10, 10:24 PM
old&slow
...raise hand...

FULL MOON, FULL MOON, FULL MOON.....
• 07-22-10, 10:37 PM
rubic
This is easy. With all the factors accounted for and calculated properly, my average speed is, um, average.
• 07-23-10, 12:50 AM
MinnMan
Was I riding an African Swallow or a European Swallow?
• 07-23-10, 03:43 AM
nancyj