The adjoining diagram shows 8 clay targe...

The adjoining diagram shows 8 clay targets, arranged in 3 columns to be shot by 8 bullets. The number of ways in which they can be shot such that no target is shot before all the targets below it, if any, are first shot is (A) 560 (B) 72 (C) 40320 (D) none of these

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The adjoining diagram shows 8 clay targets, arranged in 3 columns to be shot by 8 bullets. The number of ways in which they can be shot such that no target is shot before all the targets below it, if any, are first shot is (A) 560 (B) 72 (C) 40320 (D) none of these

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