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OpenStudy (dls):
Okay is there a smart way to do a question like this?
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OpenStudy (dls):
|dw:1360936333757:dw| counting the no. of triangles..duh
OpenStudy (dls):
using permutation and combination or something?
OpenStudy (shubhamsrg):
What can be better than counting!
OpenStudy (dls):
pnc will fail ? :/ why cant we apply that chapter!
OpenStudy (shubhamsrg):
Well it doesn't fail, simple counting is a part of PnC .
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