Home
Class 10
MATHS
There are 50 students in a class. Each b...

There are 50 students in a class. Each boy in the class contributed Rs. 40 and each girl contributed Rs. 50 towards Kerala Flood Relief Fund. If the total sum collected is Rs. 2,220, find the number of boys and the number of girls in the class.

Text Solution

Verified by Experts

The correct Answer is:
28 boys and 22 girls
Promotional Banner

Topper's Solved these Questions

  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    KUMAR PRAKASHAN|Exercise Objective Questions (True or False)|5 Videos

  • INTRODUCTION TO TRIGONOMETRY

    KUMAR PRAKASHAN|Exercise Objective Questions|24 Videos

  • POLYNOMIALS

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS|26 Videos

Similar Questions

Explore conceptually related problems

In a class of 60 students, each boy contributed rupees equal to the number of girls and each girl contributed rupees equal to the number of boys. If the total money then collected was D1600. How many boys were there in the class?

A bag contains some coins of Rs. 5 and some coins of Rs. 2. If the total number of coins is 40 the total amount is Rs. 125, find the number of coins of each denomination.

The number of boys in a class are three times the number of girls. Which one of the following numbers can't represent the total number of children in the class ?

There are 40 students in Class X of a school of whom 25 are girls and 15 are boys. The class teacher has to select one student as a class representative. She writes the name of each student on separate cards, the cards being identical. Then she puts cards in a box and stirs them thoroughly. She then draws one card from the box. What is the probability that the name written on the card is the name of (i) a girl? (ii) a boy?

A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs. 90. find the number of articles produced and the cost of each article.

A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs 90, find the number of articles produced and the cost of each article.

In a class, the mean marks of boys is 50 and the mean marks of girls is 40. If their total mean marks is 48 . Then the percentage of girls is

Yamini and Fatima , two students of class IX of a school, together contributed Rs 100 towards the prime Minister's Relief Fund to help the earthquake victims . Write a linear equation which satisfies this this data. (You may take their contributions as Rs x and Rs y). Draw the graph of the same.

Vijay had some bananas and he divided them into two lots A and B. He sold the first lot at the rate of Rs. 2 for 3 bananas and the second lot at the rate of Rs. 1 per banana, and got a total of Rs. 400. If he had sold the first lot at the rate of Rs. 1 per banana and the second lot at the rate of Rs. 4 for 5 bananas, his total collection would have been Rs. 460. Find the total number of bananas he had.

To suggest rule for inheritance of earlobe type. Procedure /Method : rarr The lowest part of the ear pinna called the earlobe, is closely attached to the side of the head, i.e., attached or not, i.e., free. rarr Observe the earlobes of all the students in the class. Prepare a list of students. Enter the data about the earlobes whether they are free or attached. rarr Find out about the earlobes of the parents of each student in the class. rarr Correlate earlobe type of each student with that of their parents. rarr In the column write F for free earlobe and A for attached earlobe. Answer the following questions on the basis of the collected data: Which expression of earlobe is observed more in number in your class?

KUMAR PRAKASHAN-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -Test Your Skills
  1. The sum of digits of a two digit number is 10. The number obtaiend by ...

    Text Solution

    |

  2. The total cost of 5 pens and 2 books is Rs. 150, while the total cost ...

    Text Solution

    |

  3. There are 50 students in a class. Each boy in the class contributed Rs...

    Text Solution

    |

  4. Solve by the elimination method: 2x+y=10, 3x+2y=17

    Text Solution

    |

  5. Solve by the elimination method: 3x+2y=11, x-4y=13

    Text Solution

    |

  6. Solve by the elimination method: 3x+4y=12, 6x+8y=20

    Text Solution

    |

  7. Solve by the elimination method: x+5y=11, 2x-3y=9

    Text Solution

    |

  8. Solve by the elimination method: 2x+3y=2, 5x+4y=3(5)/(6)

    Text Solution

    |

  9. Solve by the elimination method: 3x-5y=3, 2x+3y=-17

    Text Solution

    |

  10. The sum of a two digit number and the number obtained by interchanging...

    Text Solution

    |

  11. Two numbers are in the ratio 3:4. If 5 is added to each number, their ...

    Text Solution

    |

  12. The sum of the numerator and the denominator of a farction is 9. If 3...

    Text Solution

    |

  13. The length of a rectangel exceeds twice its breadth by 2 cm. If the pe...

    Text Solution

    |

  14. 10 years ago, the age of a father was four times the age of his son th...

    Text Solution

    |

  15. Solve the following pairs of linear equations by cross-multiplication ...

    Text Solution

    |

  16. Solve the following pairs of linear equations by cross-multiplication ...

    Text Solution

    |

  17. Solve the following pairs of linear equations by cross-multiplication ...

    Text Solution

    |

  18. Solve the following pairs of linear equations by cross-multiplication ...

    Text Solution

    |

  19. Solve the following pairs of linear equations by cross-multiplication ...

    Text Solution

    |

  20. For which value of p does the pair of equations given below has a uniq...

    Text Solution

    |