IMO B
1) Two sides may be 8.5 each and the third side 1
Perimeter = 18
250) Is the permeter more?
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Source: Beat The GMAT — Data Sufficiency |
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rockeyb
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A yes / No question .ern5231 wrote:Is the perimeter of the triangle is greater than 18?
1) Two sides are more than 8
2) Two sides are more than 10
1) Two sides are more than 8 .
Lets consider the two sides are 9 . The third side has to be greater than 0 or the 3 rd side will have to be at least 1 to form a triangle .(Considering all integer values )
The perimeter will be greater than 18 . Also if we choose two different numbers for the two sides the perimeter will be greater than 18 .
Sufficient.
2) Two sides are more than 10 .
The two sides itself are will sum more than 18 and the 3rd will have to be at least 1 to form a triangle .
Sufficient.
IMO D.
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beat_gmat_09
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IMO Bern5231 wrote:Is the perimeter of the triangle is greater than 18?
1) Two sides are more than 8
2) Two sides are more than 10
1) two sides cud b 8.2 - 16.4+1=17.4 < 18
cud b 9 - 18+1=19>18 sometimes yes somtimes no, not suff.
2) two sides are > 10 therefore two sides themselves contribute to more than 18
hence suff.
