Home
Class 10
MATHS
A box contains 90 dices which are number...

A box contains 90 dices which are numbered from 1 to 90. If one dise is drawn at random from the box, find the probability that it bears
i) two digit number
ii) a perfect square number.

Text Solution

Verified by Experts

The correct Answer is:
i] `9/(10)`
ii] `(1)/(10)`
iii] `(1)/(5)`.
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    ZEN PUBLICATION|Exercise TEXTUAL EXERCISES (14.2)|5 Videos

  • PROBABILITY

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

  • PROBABILITY

    ZEN PUBLICATION|Exercise ILLUSTRATIVE EXAMPLES|10 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 box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears (i) a two-digit number (ii) a perfect square number (iii) a number divisible by 5.

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a two - digit number .

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a number divisible by 5.

A box contains 90 discs. Which are numbered from 1 to 90. If one disc is drawn at randow from the box. Find the probability that is bears a perfect square number.

A box contains 90 discs, numbered from 1 to 90. If one disc is drawn at random from the box, the probability that it bears a prime-number less than 23, is:

A bag has cards numbered 2 to 90. a card is drawn at random from the bag. Find the probability that it bears (i) a two-digit number (ii) a number which is a perfect square.

Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find probability that the number on the card is (i) odd (ii) a perfect squrae (iii) divisible by 5 (iv) prime number < 20.

A box contains 19 balls bearing numbers 1,2,3, . .,19. a ball is drawn at random from the box. Find the probability that the number on the ball is i] a prime number ii] divisible by 3 or 5. iii] neither divisible by 5 nor by 10 iv] an even number.

A box has 3 blue, 2 white, and 4 red marbles. If a marble is drawn out at random from the box, what is the probability that it is not a white marble ?

ZEN PUBLICATION-PROBABILITY-TEXTUAL EXERCISES (14.1)
  1. A bag contains lemon flavoured candies only. Malini takes out one cand...

    Text Solution

    |

  2. It is given that in a group of 3 students, the probability of 2 studen...

    Text Solution

    |

  3. A bag contains 3 red balls and 5 black balls. A ball is drawn at rando...

    Text Solution

    |

  4. A box contains 5 red marbles, 8 white marbles and 4 green marbles . On...

    Text Solution

    |

  5. A piggy bank contains hundred 50p coins, fifty Rs. 1 coins, twenty Rs....

    Text Solution

    |

  6. Gopi bus a fish from a shop for his aquarium. The shopkeeper takes out...

    Text Solution

    |

  7. A game of chance consists of spinning an arrow which comes to rest poi...

    Text Solution

    |

  8. A die is thrown once, Find the probability of getting (i) a prime nu...

    Text Solution

    |

  9. One card is drawn from a well-shuffled deck of 52 cards. Find the pr...

    Text Solution

    |

  10. Five cards - the ten , jack , queen , king and ace of diamonds, are we...

    Text Solution

    |

  11. 12 defective pens are accidentally mixed with 132 good ones. It is not...

    Text Solution

    |

  12. A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at rando...

    Text Solution

    |

  13. A box contains 90 dices which are numbered from 1 to 90. If one dise i...

    Text Solution

    |

  14. A child has a die whose six faces shows the letters as given below: ...

    Text Solution

    |

  15. Suppose you drop a die at random one the rectangular region shown in t...

    Text Solution

    |

  16. A lot consists of 144 ball pens of which 23 are defective and the othe...

    Text Solution

    |

  17. Two dice, one blue and one grey, are thrown at the same time. i] Wri...

    Text Solution

    |

  18. A game consists of tossing a one rupee coin 3 times and noting its out...

    Text Solution

    |

  19. A die is thrown twice. What is the probability that i] 5 will come u...

    Text Solution

    |

  20. Which of the following arguments are correct and which are not correct...

    Text Solution

    |