NoMoreFaith, I gave you kudos for making me feel that I just read it wrong. 
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Simple math problem could indicate your religious beliefs.
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I spent ages justifying that I could figure out why £100 was wrong, but couldn't get the right answer myself, I thought my justification came together quite well
Self-authenticating private evidence is useless, because it is indistinguishable from the illusion of it. ― Kel, Kelosophy Blog
If you’re going to watch tele, you should watch Scooby Doo. That show was so cool because every time there’s a church with a ghoul, or a ghost in a school. They looked beneath the mask and what was inside? The f**king janitor or the dude who runs the waterslide. Throughout history every mystery. Ever solved has turned out to be. Not Magic. ― Tim Minchin, Storm 
I got it, but instictively I thought it was 100. When I read 'This is a simple question,' however, it was obvious that the instinctive answer was going to be wrong. Then I got the right answer.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell
Very simple mathematics:
x = Cost of a ball. y = Cost of a bat. This gives us the following two equations: x + y = $110 (1) y = x + $100 (2) Substitute (2) into (1): x + (x + $100) = $110 So: 2x + $100 = $110 So: 2x = $10 So: x = $5
Did you actually do that? I just figured it out in my head.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell
I figured it out in my head too, but it's nice to present your working in an easily readable format so that other people can see why $10 is the wrong answer.
RE: Simple math problem could indicate your religious beliefs.
April 30, 2012 at 8:59 am
(This post was last modified: April 30, 2012 at 9:00 am by NoMoreFaith.)
The problem is not with the working, but with the comprehension.
The question is worded so that you may wrongly assume that; x+y=$110 Once you make that "instinctual" leap, rather than correct comprehension of the question, you have yourself in a world of wrong answer trouble. Its a reading problem, not a maths one.
Self-authenticating private evidence is useless, because it is indistinguishable from the illusion of it. ― Kel, Kelosophy Blog
If you’re going to watch tele, you should watch Scooby Doo. That show was so cool because every time there’s a church with a ghoul, or a ghost in a school. They looked beneath the mask and what was inside? The f**king janitor or the dude who runs the waterslide. Throughout history every mystery. Ever solved has turned out to be. Not Magic. ― Tim Minchin, Storm (April 30, 2012 at 8:59 am)NoMoreFaith Wrote: The question is worded so that you may wrongly assume that;I don't understand what is wrong with that assumption...it's correct. x + y = $110 in this question.
Because the instinctual answer is to allocate $100 to the ball, rather than $100+x.
I never said the instinctual answer makes mathematical sense. You're very mathematically minded, so the standard instinct for the answer probably didn't occur to you.
Self-authenticating private evidence is useless, because it is indistinguishable from the illusion of it. ― Kel, Kelosophy Blog
If you’re going to watch tele, you should watch Scooby Doo. That show was so cool because every time there’s a church with a ghoul, or a ghost in a school. They looked beneath the mask and what was inside? The f**king janitor or the dude who runs the waterslide. Throughout history every mystery. Ever solved has turned out to be. Not Magic. ― Tim Minchin, Storm |
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