An anti aircraft gun take four shots at an enemy plane moving away from it. The probability of hitting the plane at the first, second, third and fourth shot are $0.4, 0.3, 0.2$ and $0.1$ respectively. The probability that the gun hit the plane is :-

  • A

    $0.25$

  • B

    $0.21$

  • C

    $0.16$

  • D

    $0.6976$

Similar Questions

On her vacations Veena visits four cities $( A ,\, B ,\, C$  and $D )$ in a random order. What is the probability that she visits $A$ just before $B$ ?

A die is thrown, find the probability of following events: A number less than or equal to one will appear,

From a book containing $100$ pages, one page is selected randomly. The probability that the sum of the digits of the page number of the selected page is $11$, is

A box contains $10$ good articles and $6$ with defects. One article is chosen at random. What is the probability that it is either good or has a defect

$A$ and $B$ are two events such that $P(A)=0.54$, $P(B)=0.69$ and $P(A \cap B)=0.35.$ Find $P ( A \cup B )$.