Question

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​

Answer 1

72 Ways  they can be shot,

Step-by-step explanation:

no target is shot before all the targets below it

Bottom 2 can be shot in 2!  = 2 Ways

then middle 3 can be shot in 3 ! = 6 Ways

Top 3 Can be shot in 3! = 6 Ways

Total Number of Ways = 2 * 6 * 6  = 72

72 Ways

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