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Inspirestella
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Practice Questions Chat 12 Nov 2023, 05:44
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Is there any efficient or a quick way to approach apart from the formula
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Mentis678
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Practice Questions Chat 12 Nov 2023, 05:58
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There is

But it will involve a bit of intuition
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Inspirestella
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Practice Questions Chat 12 Nov 2023, 06:00
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Can you elaborate on that
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Mentis678
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Practice Questions Chat 12 Nov 2023, 06:02
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Add values of first 4 terms:
0.5+0.25=0.75
0.75+0.125=0.875
0.875+0.063=0.938
These are first 4 terms. You can observe 2 things from above:
1) Value is more than 0.9 and approaching 1
2) The rate of increment is reducing substantially and subsequent addition will only make difference in 1000th or occasionally 100th place. This will never reach 1.

After additing first 4 terms, you can eliminate 3 options

after the 2 analysis given above, d is the only option
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dshin117
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Practice Questions Chat 12 Nov 2023, 07:24
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Can someone please explain with the answer is 5.33 (5 on the answer)? I tried using the seesaw method for weighted averages and keep getting 5.5. Thanks! The question: "A plane can travel 200 miles on 50 gallons of jet fuel when it flies at 10,000 feet. It can travel 300 miles on 50 gallons of jet fuel when it flies at 20,000 feet. Which of the following is closest to the number of miles per gallon that the plane will average if it flies for 1,000 miles at 10,000 feet and 3,000 miles at 20,000 feet?"
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floridastudent
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So you need to find the MPG for each of the different altitudes. For 10 thousand feet thats 4 miles per gallon (200 miles / 50 gallons) and for 20k feet thats 6mpg (300/50). Then total MPG will be = total miles traveled divided by total gallons of fuel used. For total miles this is 1000 + 3000 = 4,000. The tricky part is the total gallons. You need to find the gallons used for each altitude traveled then add them together. Divide the first 1,000 miles by 4 miles to get the number of gallons at this altitude (250). Then divide 3,000 by 6 for the gallons used at that altitude (500).
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Bunuel
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dshin117
Can someone please explain with the answer is 5.33 (5 on the answer)? I tried using the seesaw method for weighted averages and keep getting 5.5. Thanks! The question: "A plane can travel 200 miles on 50 gallons of jet fuel when it flies at 10,000 feet. It can travel 300 miles on 50 gallons of jet fuel when it flies at 20,000 feet. Which of the following is closest to the number of miles per gallon that the plane will average if it flies for 1,000 miles at 10,000 feet and 3,000 miles at 20,000 feet?"

This question is discussed in detail here: https://gmatclub.com/forum/a-plane-can- ... 09705.html
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floridastudent
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Practice Questions Chat 12 Nov 2023, 07:31
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When you divide the total 4,000 miles by the 750 gallons used you get the 5.33 for your total miles per gallon
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dshin117
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Practice Questions Chat 12 Nov 2023, 07:37
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Thanks for the quick response! :)
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Dying_Star
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Hi guys. I am going through a tough phase. It would be great if any of you could suggest something here:
scored-720-t
... 21567.html
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Dying_Star
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Dying_Star
Hi guys. I am going through a tough phase. It would be great if any of you could suggest something here: scored-720-t ... 21567.html
Sharing a working link:
scored-720-twice-got-620-in-third-attempt-421567.html#p3298813
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SN9633
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Practice Questions Chat 14 Nov 2023, 00:31
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can someone help? this is a question which i got for my focus exam official mock. No matter how i solve i keep ending up with the option i marked. clearly im doing something wrong?

it seems so easy but i keep getting my orignal answer which has been marked wrong
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SN9633
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this is how i tried to solve it
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yipmewmew
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Practice Questions Chat 14 Nov 2023, 00:38
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Plug in values and solve. Start with simple ones like 2, 1, 1/2 and 1/4.
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SN9633
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nm196600
E
yes but can you help me understand where am i going wrong
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Bunuel
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Practice Questions Chat 14 Nov 2023, 00:39
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Sreejanair9633
can someone help? this is a question which i got for my focus exam official mock. No matter how i solve i keep ending up with the option i marked. clearly im doing something wrong?

it seems so easy but i keep getting my orignal answer which has been marked wrong

You can find your answer in forum discussion of that question: https://gmatclub.com/forum/if-xyz-0-and ... 20518.html Hope it helps.
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Practice Questions Chat 14 Nov 2023, 00:41
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Sreejanair9633
this is how i tried to solve it
when you calculated ’z’, you missed a ’w’ in the last step. it should be x3/w2. not x3/w
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SN9633
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Practice Questions Chat 14 Nov 2023, 00:42
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tirpude
when you calculated ’z’, you missed a ’w’ in the last step. it should be x3/w2. not x3/w
right! i feel so stupid. Thanks
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What is a good score in focus edition? Like in old edition 690+ was considered good.
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