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07 Nov 2023, 02:30
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
78% (01:52) correct
22%
(01:45)
wrong
based on 79
sessions
History
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Charles the dog weighs 120 pounds. 3 months from now, will Charles weigh over 220 pounds?
(1) Every month, Charles' weight increases by a different percentage ranging between 10% and 40%, inclusive.
(2) The monthly percentage point increase in Charles' weight is an integer divisible by 10.
(1) Every month, Charles' weight increases by a different percentage ranging between 10% and 40%, inclusive.
(2) The monthly percentage point increase in Charles' weight is an integer divisible by 10.
09 Nov 2023, 05:25
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Bunuel
(1) Every month, Charles' weight increases by a different percentage ranging between 10% and 40%, inclusive.
Let's assume that each month increase is \(10\%.\)
Then after \(3\) months weight would be \(= 159.72 \)
Thats siginificantly less than \(220.\)
So even if the increases were close to \(10\) i.e. \(10,\) \(10.5\) and \(11\) we can resonably infer that weight would still be less than \(220.\)
Similarly if each month the increase was \(40\%\) the weight would be significantly more than \(220 \).
Hence we can reasonably infer that if the increases were very close to \(40 \) i.e. \(39,\) \(39.5\) and \(40\) then too weight would be more than \(220.\)
INSUFF.
(2) The monthly percentage point increase in Charles' weight is an integer divisible by 10.
IF each month the increase is 10 then NO
If each month the increase is 40 then YES.
INSUFF.
1+2
If the increases are 10,20 and 30 then after 3 months weight would be 205.92. Hence it's a NO.
If the increases are 20,30 and 40 then based on above, we can reasonably infer that the weight would be higher than 220. Hence it's a Yes.
INSUFF.
Ans E
Hope it helps.
