RRB NTPC Mains or Stage 2 Model Paper 7 with solutions

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DIRECTIONS (Qs. 71-73) : Study the following arrangement carefully and answer the questions given below :
B U B D C E D B D E U B A D C B E
A C D A E B A U A C D B C A C
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Question : 73 of 120
 
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How many meaningful words can be formed with the alphabets which are first, second, fifth and sixth from the left end of the above arrangement ?
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