A wire of length I is cut into three pleces. What Is the probability that the three pieces form a triangle ?

In a city of some western country, 70 percent of the married persons take divorce. What is the probability that at least three among four persons will take divorce ?

A metal wire of resistance R is cut into three equal pieces that are then connected side by side to form a new wire, the length of which is equal to one third of the original length. The resistance of this new wire is:-

What is the role of each of the three pins in a power plug ?

A wire of length 28 m, is to be cut into two pieces. One of the pieces is to be made into a square and the other into a circle. What should be the length of the two pieces so that the combined area of the square and the circle is minimum ?

Three of six vertices of a regular hexagon are chosen at random. What is the probability that the triangle with these vertices is equilateral ?

A bag contains 5 red marbles and 3 black marbles. Three marbles are drawn one by one without replacement. What is the probability that atleast one of the three marbles drawn be black, if the first marble is red ?

Three of the six vertices of a regular hexagon are chosen the random. What is the probability that the triangle with these vertices is equilateral.

In experiment probability that event A occurs in first trail is 0.4 then ………. is the probability that in three independent trial event A occurs.

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house , is