A) 224
B) 672
C) 896
D) None of these
Correct Answer: C
Solution :
Required number of ways \[{{=}^{4}}{{C}_{1}}{{\times }^{8}}{{C}_{5}}{{+}^{4}}{{C}_{2}}{{\times }^{8}}{{C}_{4}}{{+}^{4}}{{C}_{3}}{{\times }^{8}}{{C}_{3}}{{+}^{4}}{{C}_{4}}{{\times }^{8}}{{C}_{2}}\] \[=4\times 56+6\times 70+4\times 56+1\times 28=896\].
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