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OG#12-DS-64

by tintinusa » Sat Dec 04, 2010 8:30 am
IF d denotes a decimal, is d >= 0.5?

1. When d is rounded to the nearest tenth, the result is 0.5

2. When d is rounded to the nearest integer, the result is 1

B
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by beat_gmat_09 » Sat Dec 04, 2010 9:23 am
1) d when rounded to nearest 10th is 0.5
d can be any of following - 0.49, 0.45, 0.51,0.52
d >=0.5 or d<=0.5
Not sufficient.

2) d rounded to nearest is 1,
d cannot be less than 0.5 i.e. if d=0.49 then rounding to nearest integer=0
d has to be >=0.5 when rounded gives 1.
d>=0.5
Sufficient.
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by tintinusa » Sat Dec 04, 2010 9:50 am
Gotcha beat_gmat_09. Thanks
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