A certain portfolio consisted of 5 stocks, priced at $20, $35, $40, $45, and $70, respectively. On a givenday, the price of one stock increased by 15%, while the price of another stock decreased by 35% and theprices of the remaining three remained constant. If the average price of a stock in the portfolio rose byapproximately 2%, which of the following could be the prices of the shares that remained constant?
  • a)
    $20, $35, and $70
  • b)
    $20, $45, and $70
  • c)
    $20, $35, and $40
  • d)
    $35, $40, and $70
  • e)
    $35, $40, and $45
Correct answer is option 'E'. Can you explain this answer?
Related Test: Test: Mean

GMAT Question

Very good question.
see 35,40,45 are in AP ,so average will be 40$
that means the average we are getting for all 5 as 42 because of 20$ and 70$.question is which will contribute to 2% that is .84$ increment in average value.the answer is who was actually contributing prior to change made that is average rising from 40 to 42 was responsible by 20 and 70 only.so further increment beyond 42 to 42.84 will obviously be by 20 and 70.so E is the answer.tricky but logical question.no paper pen required.

This discussion on A certain portfolio consisted of 5 stocks, priced at $20, $35, $40, $45, and $70, respectively. On a givenday, the price of one stock increased by 15%, while the price of another stock decreased by 35% and theprices of the remaining three remained constant. If the average price of a stock in the portfolio rose byapproximately 2%, which of the following could be the prices of the shares that remained constant?a)$20, $35, and $70b)$20, $45, and $70c)$20, $35, and $40d)$35, $40, and $70e)$35, $40, and $45Correct answer is option 'E'. Can you explain this answer? is done on EduRev Study Group by GMAT Students. The Questions and Answers of A certain portfolio consisted of 5 stocks, priced at $20, $35, $40, $45, and $70, respectively. On a givenday, the price of one stock increased by 15%, while the price of another stock decreased by 35% and theprices of the remaining three remained constant. If the average price of a stock in the portfolio rose byapproximately 2%, which of the following could be the prices of the shares that remained constant?a)$20, $35, and $70b)$20, $45, and $70c)$20, $35, and $40d)$35, $40, and $70e)$35, $40, and $45Correct answer is option 'E'. Can you explain this answer? are solved by group of students and teacher of GMAT, which is also the largest student community of GMAT. If the answer is not available please wait for a while and a community member will probably answer this soon. You can study other questions, MCQs, videos and tests for GMAT on EduRev and even discuss your questions like A certain portfolio consisted of 5 stocks, priced at $20, $35, $40, $45, and $70, respectively. On a givenday, the price of one stock increased by 15%, while the price of another stock decreased by 35% and theprices of the remaining three remained constant. If the average price of a stock in the portfolio rose byapproximately 2%, which of the following could be the prices of the shares that remained constant?a)$20, $35, and $70b)$20, $45, and $70c)$20, $35, and $40d)$35, $40, and $70e)$35, $40, and $45Correct answer is option 'E'. Can you explain this answer? over here on EduRev! Apart from being the largest GMAT community, EduRev has the largest solved Question bank for GMAT.