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A variable name in a certain computer language must be either an alphabet or a alphabet followed by decimal digit.Total number of different variable names that can exist in that language is:
a) 280
b) 290
c)286
d)296
Plz post the full solution quickly.
Dear Priyansh
case1: variable name has only alphabet
total number of alphabet =26
case 2: variable name has both alphabet and decimal
total number = 26*10 =260
so total possibility = 260 + 26 = 286
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