Home
Class 12
MATHS
There are four boxes B(1), B(2), B(3) an...

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 :

A

`(1)/( 5)`

B

`(1)/(10)`

C

`(2)/(5)`

D

`(1)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise -5 : Subjective Type problems|12 Videos

  • PROBABILITY

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-2 : One or More than One Answer is/are Correct|4 Videos

  • PERMUTATION AND COMBINATIONS

    VIKAS GUPTA (BLACK BOOK)|Exercise Exercise-5 : Subjective Type Problems|13 Videos

  • QUADRATIC EQUATIONS

    VIKAS GUPTA (BLACK BOOK)|Exercise EXERCISE (SUBJECTIVE TYPE PROBLEMS)|45 Videos

Similar Questions

Explore conceptually related problems

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 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 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.

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

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

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

There are 10 cards numbered from 1 to 10,A card is drawn randomly.The probability of getting an even numbered card is (1)/(10) (b) (1)/(5)(1)/(2)(d)(2)/(5)

Cards numbered 7 to 40 were put in a box, Poonam selects a card at random. What is the probability that Poonam selects a card which is a multiple of 7?

Cards numbered 7 to 40 were put in a box. Poonam selects a card at random. What is the probability that Poonam selects a card which is a multiple of 7?