VeritasKarishma wrote:
chetan2u wrote:
VeritasKarishma wrote:
Bunuel: The answer to this question is (A), not (E).
The difference in total price is given as 1 cent. A cent is the smallest measure of currency and hence cost of soda (S) and cost of juice box (J) in cents must be integers. We cannot have a difference of 0.25 cents in the two costs.
Test takers are expected to understand how currencies work.
Karishma, I would differ with you on this.
1) I don't think GMAT would give you something that may put non-natives to some disadvantage. One would know that 100cents make a dollar, but cents is the smallest measure may be a bit of extra ask. I doubt actual GMAT questions have ever tested such a thing.
2) You can always get 2 soda/something for 3 cents or 27 sodas/somethings for 1 dollar in GMAT and in real life, a case that will result in 1.5 cents for 1 soda or 100/27 cents for 1 soda.
A question from GMAT Prep.
An investor purchased 100 shares of stock X at
6 1/8 dollars per share and sold them all a year later at 24 dollars per share. If the investor paid a 2 percent brokerage fee on both the total purchase price and the total selling price, which of the following is closest to the investor's percent gain on this investment?
This is an example wherein even Official questions talk of half a cent.6 1/8 dollars means 100*49/8=612.5 cents
I am sorry but we cannot justify something without having an official question testing that concept.
Bunuel chetan2u -
It has nothing to do with natives vs non natives. Anyone who takes GMAT pays his/her fees in dollars and is aware of the currency. This is very basic general awareness for people intending to go for MBA. In any case, the only time such a question may need tweaking is if in its experimental stage, it shows unexpected results.
We cannot change the official answer given as per our different understanding.
VeritasKarishmaI will respond taking this as a healthy discussion, which in the end should benefit a student.
If the question and the logic for the solution of the prep institute is correct, students and many of us who have responded otherwise on top would realize that cents mean integer values on GMAT.
If otherwise, many will get saved from a wrong notion presented by this question.
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It has nothing to do with natives vs non natives. Anyone who takes GMAT pays his/her fees in dollars and is aware of the currency. This is very basic general awareness for people intending to go for MBA. In any case, the only time such a question may need tweaking is if in its experimental stage, it shows unexpected results.
When I pay my fees, I pay it in dollars and would know that 100 cents make 1 $. But knowing cents is lowest measure of currency may not be a requirement for intending to go to MBA or for that matter even for appearing in GMAT.
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We do need to take into account the unwritten constraints as per what is possible and what is not. When we deal with questions containing buying of pencils, we know that we cannot buy 1.5 pencils. Similarly, note here what the question says - Every boy buys a soda (no packs of 2 for 3 cents etc). Hence it SHOULD be possible for every boy to buy a soda. Hence, the cost of soda cannot be 0.25 cents. The question you quote from GMAT Prep is an old, retired question in which the actual cost of shares has no relevance since you are required to calculate a percentage. How much thought was actually put into it is unknown.
The time I read this question, I did realize each boy/girl is buying the given item, so he/she should be able to buy it himself/herself. But if someone in Australia or HK reads it, he may take this to mean something else. If my knowledge and the resources available on net serves me right, 5 cents coin is the smallest coin in Australia, and 10 cents in Hong kong. Why would some one in Australia believe the difference can be 1 cent when the minimum there is 5 cent coins. So a boy buying a soda in Australia has to do it in multiples of 5 only.
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But most importantly, the intent of this practice question is to make you realize a pitfall. We know that (B - G) is an integer but we ignore that (S - J) needs to be an integer too. That is the reason the question gives you 1 cent (not 1 dollar). We can keep arguing about what is acceptable and what is not and miss the whole point the question is making. The idea is to make test takers realise that they always need to take a step back and evaluate the unwritten constraints.
I agree and appreciate the fact that the intent is noble, but hopefully we do not end up teaching something that may act in a totally opposite way.
A question from
Veritasprep, giving the value of a certain item as 7.3xy7 may conflict with the logic used to arrive at the solution here
https://gmatclub.com/forum/the-exact-cost-price-to-make-each-unit-of-a-widget-is-7-6xy7-where-x-196044.html#p2581121Yes, the intent in the question is to teach rounding off but the amount becomes 761.27 cents, which just gives an impression to the test takers that there can be decimals in cents.
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We cannot change the official answer given as per our different understanding.
I could not have agreed more. I would add a bit more - We cannot change our explanations to suit an answer. This question or the one posted in the link above is surely wrong and both are by same prep institute.
Please do not take this to do anything with any institute. I find very knowledgeable person from the institute on the forum.
Bunuel, since the answer has been changed back from E to A, there are many questions posted on the forum which go against this very concept. I'll post one such question where almost all the options are in decimals, 1.2 cents etc. There will be many more.
https://gmatclub.com/forum/a-company-manufactures-nails-that-are-meant-to-be-precisely-10-cm-long-355160.html#p2766300I would step back now and leave this here, but would love to see some official question testing cents as integers only. I know I could be wrong if there is some official question testing cents vs integer values, but then would surely learn something new.