A) 2
B) 3
C) 4
D) 5
Correct Answer: D
Solution :
(d) \[\begin{align} & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\text{T}\,\,\text{O} \\ & \text{Total}\,\text{number}\,\text{of}\,\text{balls}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\text{=}\,\,\text{1}\,\,\,\,\text{2} \\ & \text{Number}\,\text{of}\,\text{Balls}\,\text{that}\,\text{should}\,\text{remain}\,\text{uncrossed}\,\,\,\text{=}\,\,\text{-}\,\,\,\,\,\,\text{7} \\ & \text{Number}\,\text{of}\,\text{Balls}\,\text{should}\,\text{be}\,\text{crossed}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\text{=}\,\overline{\underline{\,\text{0}\,\,\,\,\text{5}}} \\ \end{align}\]
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