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• ### $450 Tuition Credit & Official CAT Packs FREE December 15, 2018 December 15, 2018 10:00 PM PST 11:00 PM PST Get the complete Official GMAT Exam Pack collection worth$100 with the 3 Month Pack ($299) • ### FREE Quant Workshop by e-GMAT! December 16, 2018 December 16, 2018 07:00 AM PST 09:00 AM PST Get personalized insights on how to achieve your Target Quant Score. # At the opening of a trading day at a certain stock exchange, the price  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: ### Hide Tags Current Student Status: Persevere Joined: 08 Jan 2016 Posts: 119 Location: Hong Kong GMAT 1: 750 Q50 V41 GPA: 3.52 At the opening of a trading day at a certain stock exchange, the price [#permalink] ### Show Tags 25 May 2016, 00:56 3 00:00 Difficulty: 5% (low) Question Stats: 91% (00:41) correct 9% (00:57) wrong based on 456 sessions ### HideShow timer Statistics At the opening of a trading day at a certain stock exchange, the price per share of stock K was$8. If the price per share of stock K was $9 at the closing of the day, what was the percent increase in the price per share of stock K for that day? (A) 1.4% (B) 5.9% (C) 11.1% (D) 12.5% (E) 23.6% Math Expert Joined: 02 Aug 2009 Posts: 7107 Re: At the opening of a trading day at a certain stock exchange, the price [#permalink] ### Show Tags 25 May 2016, 06:22 nalinnair wrote: At the opening of a trading day at a certain stock exchange, the price per share of stock K was$8. If the price per share of stock K was $9 at the closing of the day, what was the percent increase in the price per share of stock K for that day? (A) 1.4% (B) 5.9% (C) 11.1% (D) 12.5% (E) 23.6% Easy one.... BUT important that we choose the BASE of % correctly... increase of 1 on 8, so$$\frac{1}{8} * 100 = 12.5%$$ D _________________ 1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372 2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html 3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html GMAT online Tutor Board of Directors Status: QA & VA Forum Moderator Joined: 11 Jun 2011 Posts: 4277 Location: India GPA: 3.5 WE: Business Development (Commercial Banking) Re: At the opening of a trading day at a certain stock exchange, the price [#permalink] ### Show Tags 25 May 2016, 06:49 1 nalinnair wrote: At the opening of a trading day at a certain stock exchange, the price per share of stock K was$8. If the price per share of stock K was $9 at the closing of the day, what was the percent increase in the price per share of stock K for that day? (A) 1.4% (B) 5.9% (C) 11.1% (D) 12.5% (E) 23.6% Opening = 8 Closing = 9 Rise in prise = 1 So, percent increase = $$\frac{1}{8}*100$$ =>12.50% Thus answer will be (D) _________________ Thanks and Regards Abhishek.... PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only ) Current Student Joined: 18 Oct 2014 Posts: 846 Location: United States GMAT 1: 660 Q49 V31 GPA: 3.98 Re: At the opening of a trading day at a certain stock exchange, the price [#permalink] ### Show Tags 25 May 2016, 07:38 1 nalinnair wrote: At the opening of a trading day at a certain stock exchange, the price per share of stock K was$8. If the price per share of stock K was $9 at the closing of the day, what was the percent increase in the price per share of stock K for that day? (A) 1.4% (B) 5.9% (C) 11.1% (D) 12.5% (E) 23.6% Increase in price = 9-8=$1
Original price= \$8

% increase= 1/8*100= 12.5%
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Re: At the opening of a trading day at a certain stock exchange, the price  [#permalink]

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07 Jul 2016, 12:06
this is a <600 level question
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Joined: 11 Sep 2013
Posts: 21
Schools: CBS '19
Re: At the opening of a trading day at a certain stock exchange, the price  [#permalink]

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14 Aug 2018, 15:25
$$\frac{New-Old}{Old}$$=$$\frac{Closing-Opening}{Opening}$$

$$\frac{9-8}{8}$$=$$\frac{1}{8}$$=12.5%

Re: At the opening of a trading day at a certain stock exchange, the price &nbs [#permalink] 14 Aug 2018, 15:25
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