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OG 2016 PS #97

According to a certain estimate, the depth N(t), in cm, of water in a tank at t hours past 2 a.m. is given by N(t)=-20(t-5)^2+500 for all t from 0 to 10 hours, inclusive. According to this estimate, at what time does the tank's depth reach its maximum? A) 5:30 B) 7:00 C) 7:30 D) 8:00 E) 9:00 My dile...

by lfa713

Fri Feb 05, 2016 1:26 pm
Forum: Problem Solving
Topic: OG 2016 PS #97
Replies: 2
Views: 3190

How to Develop Drills

Hi folks,

Any suggestions as to how/where I can develop/find drills on the following topics:

1. Special Products aka Classic Quadratics
2. Operations on Inequalities with single and multiple terms

-L

by lfa713

Sun Jan 24, 2016 4:03 pm
Forum: GMAT Math
Topic: How to Develop Drills
Replies: 2
Views: 1815

Hi Rich, Thank you for your reply. Rewriting the steps makes sense, great tip! The April test is my second attempt, actually. I initially wrote it in November 2015. I studied approximately two months and a bit using ONLY Kaplan's Premier Textbook and online self-guided study modules. My Kaplan mock ...

by lfa713

Mon Jan 18, 2016 10:35 am
Forum: GMAT Strategy
Topic: Studying Hard, Hardly Learning
Replies: 8
Views: 2767

Studying Hard, Hardly Learning

Hello friends, This post is asks about absorbing, understanding, and finally applying content learned. Background: -writing GMAT in April (eek!) -studying before work, lunch break, after work -CAT 1 540 Q31 V34 -goal score 600-ish Learning tools include: -MGMAT study guides (all nine, including onli...

by lfa713

Mon Jan 18, 2016 9:00 am
Forum: GMAT Strategy
Topic: Studying Hard, Hardly Learning
Replies: 8
Views: 2767