<p>on page 720 #14, the wedge problem.
i’ve looked this problem up in the archive and i understand the explanation but i don’t get what they mean why “each uncut disk is a unioformly distributed 2.5 grams”. Doesn’t this mean that apart from the 40 degree wedge the rest 320 degrees of the circle equals to 2.5 grams? In other words the explanation says (1/9) x (2.5)= 5/18, the answer, but my way of thinking was (1/8) x (2.5) = 5/16 because i assumed not to count the uncut part (the 40 degree section) i don’t get why my solution doesn’t make sense…or am i just reading this problem wrong?</p>
<p>Desi, when looking at SAT problems, resist the urge to overthink. </p>
<p>In this case, look at the sentence "“each uncut disk is a uniformly distributed at 2.5 grams” and forget the “uniformly” term that adds confusion and focus on the terms “each uncut disk = 2.5 gr.” Uncut really means untouched … thus there is no need to think the cut has anything to do with the problem. </p>
<p>The only think you need to figure is the relation of 40 degrees to 360 degrees => which is 1/9. From there, you know that 2.5/9 equals 5/18.</p>