% problem - answer choices - need expert opinion

This topic has expert replies
Newbie | Next Rank: 10 Posts
Posts: 7
Joined: Wed May 23, 2007 6:33 pm
i've heard before that if an answer choice is very close, but not exact, it is most often wrong - or if the answer is partly wrong, it is entirely wrong.

below is a question from one of the old/retired official question where the given answer (1000) is not the exact answer (990).
1. am i doing something wrong?
2. it doesn't seem to be an approximation problem, since one of the choices (1210) is not rounded off to the nearest hundred.
do these sort of questions still appear?
3. if so, is it best to pick the closest answer like above?

------------
8. If a 10 percent deposit that has been paid toward the purchase of a certain product is $110, how much more remains to he paid?
(A) $880
(B) $900
(C) $1,000
(D) $1,100
(E) $1,210
Source: — Problem Solving |

Newbie | Next Rank: 10 Posts
Posts: 7
Joined: Wed May 23, 2007 6:33 pm

by oops » Fri Jun 15, 2007 2:25 pm
BTW, this is question No. 8 in Old Test No. 30 available at this site.

Master | Next Rank: 500 Posts
Posts: 468
Joined: Sat Mar 03, 2007 10:17 pm
Thanked: 5 times

Well..

by moneyman » Sat Jun 16, 2007 9:10 am
The question is what is the amount left to be paid after the first deposit..With the 10% deposit amount it can be deducted that the original amount is 1100..And when you deduct 110 from 1100 we get an answer of 990 which is closest to answer choice C ( 1000 )..This is the best among the other choices because it is the closest approximation..So you are not wrong and your approach is right..
Maxx