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Column A Column B   A 10-foot ladder is leaning against ... ...

Column A

 Column B
   1    The distance the top of the ladder slides down the wall

 


(A) Column A is larger
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set I: Hard Quantitative Comparisons 2

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Replies to This Thread: 1 | ----
 
Posted: 10/16/2013 16:50
Hello! Could you clarify why, in the final equation, you use 8-7 instead of 7-6? Thank you!
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Posted: 10/29/2013 17:37
hi Lynette, thanks for using the app. The explanation is just trying to quickly establish that 8- √51 is less than 1, by substituting 7 for √51 (since 8-7 also results in 1, the amount the ladder slips in the bottom). Sorry if that confused you.
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