A) 4095
B) 5095
C) 4905
D) 4090
Correct Answer: A
Solution :
Required number of ways \[{{=}^{12}}{{C}_{1}}{{+}^{12}}{{C}_{2}}{{+}^{12}}{{C}_{3}}+.......{{+}^{12}}{{C}_{12}}={{2}^{12}}-1\] \[=4096-1=4095\].
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