Home
Class 10
MATHS
The probability a red marble selected at...

The probability a red marble selected at random from a jar containing p red, q blue and r green marbles is

A

`(q)/(p+q+r)`

B

`(p)/(p+q+r)`

C

`(p+q)/(p+q+r)`

D

`(p+r)/(p+q+r)`

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO UNIT EXERCISE|15 Videos

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO THINKING CORNER|12 Videos

  • STATISTICS AND PROBABILITY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO EXERCISE 8.4|18 Videos

  • RELATIONS AND FUNCTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|25 Videos

  • TRIGONOMETRY

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|22 Videos

Similar Questions

Explore conceptually related problems

A jar contains 54 marbles each of which is blue, green or white. The probability of selecting a blue marbles at random from the jar is (1)/(3) and the probability of selecting a green marble at random is (4)/(9) . How many white marbles does the jar contain ?

Suppose we have four boxes A, B, C and D containing coloured marbles as given below: One of the boxes has been selected at random and a single marble is drawn from it. If the marble is red, what is the probability that it was drawn from box A? box B?

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that a. Both the balls are red. b. One of them is black and the other is red.

What is the probability of selecting a red king from a deck of cards?

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that i both balls are red. ii. first ball is black and second is red. ii. one of them black and other is red.

Two balls are drawn at random with replacement from a box containing 10 black and 8 red balls. Find the probability that i. both balls are red. ii. first ball is black and second is red. iii. one of them black and other is red:

A jar contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is greenis . Find the number of blue marbles in the jar.

A jar contains 24 marbles , some are green and other are blue . If a marble is drawn, at random from the jar , the probability that it is green is 2/3 . Find the number of blue balls in the jar .

A box contains 3 blue, 2 white, and 4 red marbles. If a marble is selected at random from the box, what is the probability that it will be (i) white? (ii) blue? (iii) red?