There are four boxes `A_1, A_2, A_3` and `A_4`. Box `A_i` has i cards and on each card a number is printed, the numbers are from 1 to i. A box is selected randomly, the probability of selection of box `A_i` is `i/10` and 10 then a card is drawn. Let `E_1` represents the event that a card with number 'i' is drawn. `P(A_3"/"E_2)` is equal to:

There are four boxes A_(1),A_(2),A_(3) and A_(4). Box A_(i) has i cards and on each card a number is printed,the numbers are from 1 to i. A box is selected randomly,the probability of selection of box A_(i) is (i)/(10) and then a card is drawn.Let E_(i) represents the event that a card with number i' is drawn.

There are four boxes B_(1), B_(2), B_(3) and B_(4) . Box B_(i) has i cards and on each card a number is printed, the numbers are from 1 to i . A box is selected randomly, the probability of selecting box B_(i) is (i)/(10) and then a card is drawn. Let E_(i) respresent the event that a card with number 'i' is drawn, Then : Q. P(B_(3)|E_(2)) is equal to :

There are four boxes B_(1), B_(2), B_(3) and B_(4) . Box B_(i) has i cards and on each card a number is printed, the numbers are from 1 to i . A box is selected randomly, the probability of selecting box B_(i) is (i)/(10) and then a card is drawn. Let E_(i) respresent the event that a card with number 'i' is drawn, Then : Q. P(E_(1)) is Equal to :

There are 10 cards numbered from 1 to 10 in a box. If a card is drawn randomly, then find the probability of getting an even numbered card.

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events The number on the card is a prime number

Cards with numbers 2 to 101 are placed in a box. A card is selected at random. Find the probability that the card has : (i) an even number (ii) a square number

Cards with number 2 to 101 are placed in a box. A card is selected at random. Find the probability that the card has (i) an even number (ii) a square number

Card numbered as 1, 2, 3, .........., 15 are put in a box. One card is drawn at random. The probability of getting a multiple of 5 is

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events The number on the card is a perfect square.