Home
Class 7
MATHS
A pencil box has 5 fountain pens. 3 blue...

A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. One item is taken out of the box at random. Find the probability that the item is a:
red pencil

Text Solution

Verified by Experts

The correct Answer is:
`(7)/(15)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    ICSE|Exercise CHALLENGES|2 Videos

  • PROBABILITY

    ICSE|Exercise UNIT PRATICE PAPER VI (FILL IN THE BLANKS)|5 Videos

  • PROBABILITY

    ICSE|Exercise EXERCISE 19.1|34 Videos

  • PERIMETER AND AREA

    ICSE|Exercise TRY THIS |41 Videos

  • PROFIT AND LOSS

    ICSE|Exercise EXERCISE 10 |18 Videos

Similar Questions

Explore conceptually related problems

A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. One item is taken out of the box at random. Find the probability that the item is a: pencil

A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. One item is taken out of the box at random. Find the probability that the item is a: fountain pen

A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be(i) red ? (ii) white ? (iii) not green?

A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red? (ii) white? (iii) not green?

A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be red ?

A bag has 6 green, 5 red, 7 blue and 3 pink pencils. One pencil is drawn at random. Find the probability that the pencil is neither green nor pink.

A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is white.

A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is neither red nor white.

An urn contains 60 blue pens and 40 red pens. Half of the each one is defective . If one pen is chosen at random , what is the probaility that it is a defective or a red pen ?

A box has 15 slips with numbers from 1 to 15 written on them, one slip with one number. One slip is drawn from the box at random. Find the probability that the slip drawn has a multiple of 5.

ICSE-PROBABILITY-REVISION EXERCISE
  1. A die is rolled. Find the probability of getting: a multiple of 5.

    Text Solution

    |

  2. A die is rolled. Find the probability of getting: a non - prime num...

    Text Solution

    |

  3. An unbiased die is rolled. Find the probability of getting: an even...

    Text Solution

    |

  4. A card is drawn from a pack of cards. Find the probability that: If...

    Text Solution

    |

  5. A card is drawn from a pack of cards. Find the probability that: It...

    Text Solution

    |

  6. A card is drawn from a pack of cards. Find the probability that: it...

    Text Solution

    |

  7. A card is drawn from a pack of cards. Find the probability that: it...

    Text Solution

    |

  8. A card is drawn from a pack of cards. Find the probability that: it...

    Text Solution

    |

  9. A card is drawn from a pack of cards. Find the probability that: it...

    Text Solution

    |

  10. A box has 15 slips with numbers from 1 to 15 written on them, one slip...

    Text Solution

    |

  11. A bag has 5 chocolate candies and 7 vanila candies. One candy is drawn...

    Text Solution

    |

  12. A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. O...

    Text Solution

    |

  13. A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. O...

    Text Solution

    |

  14. A pencil box has 5 fountain pens. 3 blue pencils. And 7 red pencils. O...

    Text Solution

    |

  15. A class has 20 girls and 16 boys. One student is selected at random. F...

    Text Solution

    |

  16. A six - faced die has 3 faces red, 2 blue 1 white. The die is rolled. ...

    Text Solution

    |

  17. A six - faced die has 3 faces red, 2 blue 1 white. The die is rolled. ...

    Text Solution

    |

  18. A six - faced die has 3 faces red, 2 blue 1 white. The die is rolled. ...

    Text Solution

    |

  19. The letters of the word ''CHANCES'' are placed in a box and one letter...

    Text Solution

    |

  20. The letters of the work ''CHANCES'' are placed in a box and one letter...

    Text Solution

    |