Home
Class 10
MATHS
In a competitive examination, 1 mark is ...

In a competitive examination, 1 mark is awarded for each correct answer while 1/2 mark is deducted for every wrong answer. Jayanti answered 120 questions and got 90 marks. How many questions did she answer correctly?

Text Solution

Verified by Experts

The correct Answer is:
Rahul answered 100 questions correctly .
Promotional Banner

Topper's Solved these Questions

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    EDUCART PUBLICATION|Exercise LONG ANSWER Type Questions [4 marks]|10 Videos
  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    EDUCART PUBLICATION|Exercise SHORT ANSWER (SA-I) Type Questions [2 marks]|10 Videos
  • INTRODUCTION TO TRIGNOMETRY AND ITS APPLICATIONS

    EDUCART PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS |42 Videos
  • POLYNOMIALS

    EDUCART PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS|5 Videos

Similar Questions

Explore conceptually related problems

In an examination , one mark is awarded for every correct answer , while (1)/(4) mark is deducted for every worng answer . If a students gets 90 marks by answering 120 questions , then how many question did she answer correctly ?

Aprajita taught some children of slum areas for certain days. Then she organised a test for them in which she awarded one mark for each correct answer and deducted 1/2 mark for each wrong answer. A child answered 80 questions and got 68 marks. How many questions did he answer correctly?

In a test, 1 mark is awarded for each correct answer and one mark is deducted for each wrong answer. If a boy answer all 20 items of the test and gets 8 marks, the number of questions answered correct by him was

A test consists of ‘True’ or ‘False’ questions. One mark is awarded for every correct answer while 1/4 mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered 120 questions and got 90 marks. If answer to all questions he attempted by guessing were wrong and answered 80 correctly, then how many marks he got?

A test consists of ‘True’ or ‘False’ questions. One mark is awarded for every correct answer while 1/4 mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered 120 questions and got 90 marks. If answer to all questions he attempted by guessing were wrong, then how many questions did he answer correctly?

A test consists of ‘True’ or ‘False’ questions. One mark is awarded for every correct answer while 1/4 mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered 120 questions and got 90 marks. If answer to all questions he attempted by guessing were wrong, then how many questions answered correctly to score 95 marks?

A test consists of ‘True’ or ‘False’ questions. One mark is awarded for every correct answer while 1/4 mark is deducted for every wrong answer. A student knew answers to some of the questions. Rest of the questions he attempted by guessing. He answered 120 questions and got 90 marks. How many questions did he guess?

EDUCART PUBLICATION-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -SHORT ANSWER (SA-II) Type Questions [3 marks]
  1. Find the solution of the pair of equations (x)/(10) + (y)/(5) - 1 = 0 ...

    Text Solution

    |

  2. By the graphical method, find whether the following pair of equations ...

    Text Solution

    |

  3. The present age of a father is three years more than three times th...

    Text Solution

    |

  4. The taxi charges in a city comprise of a fixed charge together with...

    Text Solution

    |

  5. Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 ho...

    Text Solution

    |

  6. If the angles of a triangle are x, y and 40^(@) and the difference bet...

    Text Solution

    |

  7. Determine the vertices of a triangle, equations of whose sides are giv...

    Text Solution

    |

  8. A part of monthly hostel charges in a colege are fixed and the remaini...

    Text Solution

    |

  9. There are some students in the two examination halls A and B. To make ...

    Text Solution

    |

  10. In a competitive examination, 1 mark is awarded for each correct answ...

    Text Solution

    |

  11. Fathers age is three times the sum of ages of his two children. After ...

    Text Solution

    |

  12. Solve the following system of equations : (21)/(x)+(47)/(y) = 110 ...

    Text Solution

    |

  13. The sum of the reciprocals of Rehmans ages, (in years) 3 years ago an...

    Text Solution

    |

  14. Solve the pair of given linear equation: 4x+3y=7 2x-y=11

    Text Solution

    |

  15. Solve the following pair of linear equations: 8s-3h=-9 -3s+h=1

    Text Solution

    |

  16. Find the solution of the pair of equations : (3)/(x) + (8)/(y) = -1 ...

    Text Solution

    |

  17. Ratio between the girls one long 11 class of 40 students is 2:3 five, ...

    Text Solution

    |

  18. I am three times as old as my son. Five years later, I shall be two an...

    Text Solution

    |

  19. A two digit number is four times the sum of the digits. It is also equ...

    Text Solution

    |

  20. A and B each have a certain number of mangoes. A says to B, if you ...

    Text Solution

    |