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1) Yesterday Art earned $10.00 less than Bill, and today Art earned $7.50 more than Bill. Which of the following must be true about Art's total earnings for the two days compared Bill's?

a) Art earned 3/4 of what Bill earned
b) Art earned $17.50 more than Bill
c) Art earned $2.50 more than Bill
d) Art earned $4.50 less than Bill
e) Art earned $17.50 less than Bill

**Answer is D. Embarrassingly enough, the level of difficulty is 1, but I have no idea.

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2) A ball is dropped from 192 inches above level ground and after the third bounce it rises to a height of 24 inches. If the height to which the ball rises after each bounce is always the same fraction of the height reached on its previous bounce, what is this fraction?

a) 1/8
b) 1/4
c) 1/3
d) 1/2
e) 2/3

**Answer is D.

(questions from Nov 96 Sec 2)

By Grapeful (Grapeful) on Wednesday, August 13, 2003 - 08:40 pm: Edit

by the way, i heard there was a site that gave explanations to 10 Real SATs. if there is such a site, does anyone know the link??

By Akaflex (Akaflex) on Wednesday, August 13, 2003 - 08:54 pm: Edit

www.studyhall.com

By Serene (Serene) on Wednesday, August 13, 2003 - 09:05 pm: Edit

1. wrong answer choices
2. let's say the fraction is r. after the first bounce ball reaches 192*r, after second bounce reaches 192*r^2, after third bounce ball reaches 192*r^3 = 24
r^3 = 1/8
r = 1/2

By Grapeful (Grapeful) on Thursday, August 14, 2003 - 09:51 am: Edit

thanks, serene for your help on number 2. I just checked, my book again and those were the answer choices given for #1.

See pg. 371 in 10 Real SATs 3rd Edition; Nov 96 tst, sec 2, #8

but i guess it could be a misprint...

By Tootall (Tootall) on Thursday, August 14, 2003 - 10:03 am: Edit

By intuition the answer is Art earned 2.50 less than Bill. So i went and checked 10 Real SAT's. You didn't copy it correctly. I have second Edition, so maybe 3rd is wrong.

A. Art earn 3/4 of what Bill Earned
B. Art eard 17.50 more than Bill
C. Art earned 2.50 more than Bill
D. Art earned 2.50 less than Bill.
E. Art earned 17.50 less than Bill

The answer is D.
x is bill's earnings x+y for two days art's is x-10 + y+7.50 = x+Y bill and x+y-2.50 ARt