Home
Class 10
MATHS
A box has 25 red and 50 black balls. Fin...

A box has 25 red and 50 black balls. Find the probability of picking (a) a red ball (b) a black ball.

Text Solution

Verified by Experts

The correct Answer is:
a] `1/3`
b] `2/3`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SHORT ANSWER [SA] TYPE - 1 QUESTIONS|16 Videos
  • PROBABILITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SHORT ANSWER [SA] TYPE - 2 QUESTIONS|10 Videos
  • PROBABILITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS (MULTIPLE-CHOICE QUESTIONS)|25 Videos
  • POLYNOMIALS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS ( Competitive exam questions )|5 Videos
  • QUADRATIC EQUATIONS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS (IIT FOUNDATION)|5 Videos

Similar Questions

Explore conceptually related problems

A bag has white, black, and red balls. A ball is drawn at random from the bag. The probability of getting a white ball is 3/(10) and that of a black ball is 2/5 . Find the probability of getting a red ball. If the bag has 20 black balls, find the total number of balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

A box has come black balls and 30 white balls. If the probability of drawing of a black ball is 2/5 th the probability of drawing of a white ball, find the number of black balls in the box.

A bag contains 6 red balls and some blue balls. If the probability of drawing a blue ball from the bag is double that of a red ball, find number of blue balls in the bag.

A box $X$ contains 2 white and 3 black balls and another bag Y contains 4 white and 2 black balls. One bag is selected at random and a ball is drawn from it. Then the probability for the ball chosen be white is

A bag contains 3 red balls, 5 white balls and 8 blue balls. One ball is taken out of the baf at random. fine the probability that the ball taken out is (a) a red ball, (b) not a white ball.

A bag contains 5 red, 8 green, and 7 white balls. One ball is drawn at random from the bag, find the probability of getting: (a) not a white ball, (b) neither a green nor a red ball.