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30 Aug 2019, 06:26
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Difficulty:
95%
(hard)
Question Stats:
35% (02:12) correct
65%
(02:21)
wrong
based on 72
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Blocks of Type A are 4 inches tall per block, while those of Type B are 5 inches tall per block. If 12 blocks are stacked on each other, a of Type A and b of Type B, into a single column, is a > b ?
(1) b > 5
(2) The height of the column is less than 56 inches.
(1) b > 5
(2) The height of the column is less than 56 inches.
Archit3110
Updated on: 30 Aug 2019, 14:57
Originally posted by Archit3110 on 30 Aug 2019, 11:05.
Last edited by Archit3110 on 30 Aug 2019, 14:57, edited 1 time in total.
Last edited by Archit3110 on 30 Aug 2019, 14:57, edited 1 time in total.
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Bunuel
determine a>b
#1
b>5
So at max b=a=6 but a is not a >b sufficient
#2
4a+5b=56
we can have a=9 and b=4
and b=8 and a=4
insufficient
IMO A
30 Aug 2019, 14:51
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a + b = 12
#1
b > 5 => b is atleast 6 meaning
a <= 6
a may be equal or less than b but is not greater than b
#2
4a + 5b < 56
Case 1 : a = 10 b = 1 => 4a + 5b = 45 where a > b
Case 2 : a = 1 b = 10 => 4a + 5b = 54 where a < b
Case 3 : a = 5 b = 5 => 4a + 5b = 45 where a = b
Clearly not sufficient
Option A
Sent from my iPhone using GMAT Club Forum
#1
b > 5 => b is atleast 6 meaning
a <= 6
a may be equal or less than b but is not greater than b
#2
4a + 5b < 56
Case 1 : a = 10 b = 1 => 4a + 5b = 45 where a > b
Case 2 : a = 1 b = 10 => 4a + 5b = 54 where a < b
Case 3 : a = 5 b = 5 => 4a + 5b = 45 where a = b
Clearly not sufficient
Option A
Sent from my iPhone using GMAT Club Forum
