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pls. help .......................
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1) greatest no. of selection is for mid value,i.e., 7 here. no. of sel. = 14C7 for 15, it is 15C8 or 15C7 (both r same) 2) we can choose two pts. on one line& one on other. :. we get 5C2 10C1 + 5C1 10C2 = 325
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Himanshu Jain P.E.C. http://jainhim.blogspot.com/ |
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