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geometry triangles,

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by quantskillsgmat » Thu Jan 05, 2012 10:04 pm
what should be fastest way of doing this type of question
The number of triangles with integer sides tht can be made which have perimeter 14, are
a)6
b)5
c)4
d)3
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    Source: — Problem Solving |

    by LalaB » Thu Jan 05, 2012 10:18 pm
    IMHO the answ is A


    a+b+c=14

    c-a<b<a+c


    b<a+c
    b<14-b
    0<b<7

    so, there are 6 triangles
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