GRE Quant Ep 11: Word Problems

[@smilykena9144]

Thank you so much!! Team lefty!!!❤

[@sprichaelpaudel2955]

For Last question, I approached 8.08+12/75.

[@GRENinjaTutoring]

That's a great way of approaching this question! Thank you for sharing it.

[@afterburnerfox]

more gre quant please, this is super helpful

[@martynadydyk9714]

Q2 did not make sense to me the way it is explained, I would never go with algebra for a question that is clearly a ratio question. If we have 3 colours, W B S, we know there are 3 more W than B, and we don't know the S number of cars, but it could be 1, then why don't we just start by putting the smallest possible numbers that match this question. This would have to be a ratio of 3:1:1. We would have 3/5 for answer A. Now, no matter how many silver cars we add or change the numbers, the fraction will get smaller and smaller as we go, right? So if 3/5 is our answer here, it is smaller than B. What's the point of algebra here?

[@JuanPena-ot9yw]

for question 5, when we are left with 12Pj = 20Pf, if we solve for Pj we get 20/12 xPf, will that still be a good way to answer the question? because if we dived 20/12 = 1.7 which will be greater than 1.6 in the Quant B, which then Quan A will be Pj = 1.7Pf that's how I solve for it and I don't know if it's a good way to do it.

[@GRENinjaTutoring]

That's another great way of solving this question. Once you get to 12Pj = 20Pf, it doesn't matter whether you write both quantities in terms of Pj or Pf. Either way, you'll have enough information to answer this question. Thank you for commenting!

[@martynadydyk9714]

Q1, seems faster if we just start substracting 18 from the given numbers to find the answer. Clearly, it can't be E, way too big. Then, all you have to do is 29-18=11 11+29 = 40 so 29 is the correct answer. We could check all of them but it was obvious just by looking at it that the answer will be 29.

[@martynadydyk9714]

Q5 why are we doing it in such a complex way? We don't know the price of the bikes, but we can just make it up. If one bike is $1 (I like working with small numbers) then we sold 120 bikes for $120 in January. In Feb, we sold 200 bikes making us $120. 120:200 = 0.60 per each bike. 0.60 x 1.6 = 0.96 so less than a dollar, so A is bigger. To check this, I made the price for each bike $50 just to check with a different number and I got A, so A is bigger every time.

[@mehwishkhan9169]

Query about Question 1; can you pls tell me, why you extract A = E -18 when we can easily put the equation E = A + 18 into first equation that is A = 40 - E, and get the same result.

[@seyedmohsenmahmoudi847]

I have a question about the bicycle question. As far as I know, the definition of revenue is: Revenue = Psell - Pbuy. In contrast, the instructor solved the question by: Revenue = Psell. If we solved the question based on what I mentioned, the amount of B option would be: (24Psell-in-January - 16Pbuy)/25. As a result, the option D would be the correct answer! Am I wrong?

[@GRENinjaTutoring]

The revenue a company makes is just the amount of money it brings in during a given period of time. A company's profit is its revenue minus its costs, so the formula you used in this question was the formula for the company's profit, not its revenue. I hope that helps!

[@Abkuyper]

what do you mean size wise rather than number wise?? 5:54

[@GRENinjaTutoring]

This was an aside joke. Dana said the Europeans are bigger than the Americans, then clarified this to mean that she meant there are a greater NUMBER of Europeans than Americans and not that Europeans are BIGGER in size terms than Americans. I hope that helps!

[@potato733]

Q3 doesn't make much sense. When you consider distance of Meera at t=0, she is already 176km away from London whereas the question states she leaves London at t=0 => distance=0km. Couldn't wrap my head around it. Hope we don't have such ambiguous questions in the test.

[@martynadydyk9714]

Q4 doesn't require any notes, just logical thinking, can't believe questions like this I can solve in head, but I fold on a simple geometry question :(