A) 346
B) 140
C) 196
D) 280
Correct Answer: C
Solution :
[c] As for given question two cases are possible. (i) Selecting 5 out of first five question and 6 out of remaining 5 question \[{{=}^{5}}{{C}_{4}}{{\times }^{8}}{{C}_{6}}=140\] choices. (ii) Selecting 5 out of first five question and 5 out of remaining 8 questions \[{{=}^{5}}{{C}_{5}}{{\times }^{8}}{{C}_{5}}=56\] choices. Therefore, total number of choices \[=140+56=196.\]
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