I06-23

Question

https://gmatclub.com/gmat-focus-tests/resources/import/img/I06-23-2.webp 
 
The graph compares the cost of ethanol and gasoline in the United States with the cost of corn over a period of time. Ethanol and gasoline costs are shown on the left vertical axis, and corn costs are shown on the right vertical axis.
 
Select from each drop-down menu the option that creates the most accurate statement, given the information provided.

The highest cost of ethanol per gallon was approximately  GRAPH_1_PLACEHOLDER  greater than the lowest cost of corn per bushel.

At the end of the period shown in the graph, the cost per gallon of gasoline was approximately  GRAPH_2_PLACEHOLDER  of what it was at the beginning of the period.

Bunuel · Answer

Official Solution:

Drop-down 1: 
 
The highest cost for ethanol was at the beginning of 2013, reaching approximately $3.20–$3.30 per gallon, while the lowest cost for corn was at the end of 2015, at approximately $2.90–$3.00 per bushel. Therefore, the highest cost for ethanol was approximately 20–40 cents greater than the lowest cost of corn.
 
 Drop-down 2: 
 
At the beginning of 2008, the cost of gasoline was approximately $0.60 per gallon, while by the end of 2016, it had increased to approximately $1.70, meaning the price approximately tripled.

Correct answer:

Dropdown 1:  "30 cents"

Dropdown 2:  "triple "

Bunuel · Answer

I have revised the question, solution, and formatting by adding more details to enhance clarity.

Aditya997 · Answer

Bunuel could please help out here,
how are you getting these values from the graph? 
for the first question i got 3.3 and 3 (which are quite close from what is given in the answer but while solving don't come close to the answer).
also for the second one i got 0.8 and 1.7 which again don't match the answer.

Bunuel · Answer

We need to find approximate answers. Even if you estimate the way you did, you would still arrive at the correct answer because the options are well spread apart.

Nestor_Izuit · Answer

I don’t quite agree with the solution. graph is not clear, it's hard to see the scale for corn price, in question 1 I thought ethanol price is 3,5 and corn 2,7 so I get 30% and not 15%. Probably I'm wrong but in any case it's barely readible from this graph

Bunuel · Answer

Ethanol and gasoline costs are shown on the   left  vertical axis , and corn costs are shown on the   right  vertical axis .

The ethanol price is represented by the black line, which clearly lies entirely below the $3.50 mark (   left  vertical axis  ).

The corn prices are represented by the red line, with the lowest point around $3 (   right  vertical axis  ).

ektalakra · Answer

Doubt for 2nd part of the question:
i took the initial reading (beginning of the period -2008) as 0.8 (approx.) and for reading " at the end of the period" as the reading Jan 17 which is coming approximately 1.8 final reading almost twice of initial reading....could you pls help me identify what I am missing.

Bunuel · Answer

You’re right that on the left axis the gasoline line in early could 2008 look close to 0.8, and by the end of the period it’s around 1.7 (actually 0.6 and 1.7). Even if you read it that way, when you compare the options (half, equal, triple), “triple” is still the closest match. It’s not equal and it’s not half, so among the given choices, “triple” is the best fit.

Robo_123 · Answer

The lowest point for corn per bushel on the right axis is above 3. It is around 3.5, why are we saying it is lower than that?

Bunuel · Answer

Check the blue line: https://gmatclub.com/forum/download/file.php?id=86598 GMAT-Club-Forum-irdyxbj6.png

I06-23

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