DS-Gmat Review- question 100

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Source: — Data Sufficiency |

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by GmatKiss » Wed Aug 17, 2011 12:40 am
Taniuca wrote:Could someone be kind to explain the sufficiency for the next problem:

if [x] denotes the greates interger less tha or equal to x, is [x]=0?

1) 5x+1=3+2x
2)0<x<1
Please clarify on the bolded part! Its confusing.

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by sunny.bhasin » Wed Aug 17, 2011 7:30 pm
HI,

it means any integer number which is either less than or equal to x,let me explain it by example:
[3.2]=3
[3]=3

similarly a)x=2/3 so[2/3]=0
b)0<x<1 so[x]=0

either statement alone is sufficient so answer id option d
GmatKiss wrote:
Taniuca wrote:Could someone be kind to explain the sufficiency for the next problem:

if [x] denotes the greates interger less tha or equal to x, is [x]=0?

1) 5x+1=3+2x
2)0<x<1
Please clarify on the bolded part! Its confusing.