Home
Class 11
MATHS
In a group of students, 100 students kno...

In a group of students, 100 students know Hindi, 50 know English and 25 know both. Each of the students knows either Hindi or English. How many students are there in the group?

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

In a group of 45 students, 22 can speak Hindi only and 12 can speak English only. If (2lambda+1) student can speak both Hindi and English, the value of lambda is

In a survey of 600 students in a school, 150 students were found to be taking tea and 225 taking coffee, 100 were taking both tea and coffee. Find how many students were taking neither tea nor coffee?

In a survey of 600 students in a school, 150 students were found to be taking tea and 215 taking coffee, 150 were taking both tea and coffee. Find how many students were taking neither tea nor coffee?

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. Find the probability that she reads neither Hindi nor English news papers.

In a class of 40 students, 12 enrolled for both English and German. 22 enrolled for German. If the students of the class enrolled for at least one of the two subjects, then how many students enrolled for only English and not German?

A school collected Rs.2601 as fees from its students.If each student paid as many paise as there were students in the school,how many students were there in the school?

In how many ways can 8 students be seated in : a line ?

20 % of 25 students in a class are boys.How many girls are in the class?

PSEB-SETS-EXERCISE
  1. In the following, determine whether the statement is true or false. If...

    Text Solution

    |

  2. In the following, determine whether the statement is true or false. If...

    Text Solution

    |

  3. In the following, determine whether the statement is true or false. If...

    Text Solution

    |

  4. In the following, determine whether the statement is true or false. If...

    Text Solution

    |

  5. Let A, B, and C be the sets such that A uu B = A uu C and A nn B = A n...

    Text Solution

    |

  6. Show that the following four conditions are equivalent : (i) A sub B (...

    Text Solution

    |

  7. Show that if A sub B, then C -B sub C -A.

    Text Solution

    |

  8. Assume that P(A) = P(B). Show that A = B

    Text Solution

    |

  9. Is it true that for any sets A and B, P(A) uu P(B) = P(A uu B)? Justif...

    Text Solution

    |

  10. Show that for any sets A and B, A = ( A nn B) uu ( A -B ) and A uu (B-...

    Text Solution

    |

  11. Using properties of sets, show that A uu ( A nn B)=A

    Text Solution

    |

  12. Using properties of sets, show that A nn (A uu B)=A

    Text Solution

    |

  13. Show that A nn B = A nn C need not imply B = C.

    Text Solution

    |

  14. Let A and B be sets. If A nn X = B nn X =phi and A uu X = B uu X for s...

    Text Solution

    |

  15. Find sets A, B and C such that A nn B, B nn C and A nn C are non-empty...

    Text Solution

    |

  16. In a survey of 600 students in a school, 150 students were found to be...

    Text Solution

    |

  17. In a group of students, 100 students know Hindi, 50 know English and 2...

    Text Solution

    |

  18. In a survey of 60 people, it was found that 25 people read newspaper H...

    Text Solution

    |

  19. In a survey of 60 people, it was found that 25 people read newspaper H...

    Text Solution

    |

  20. In a survey it was found that 21 people liked product A, 26 liked prod...

    Text Solution

    |