Home
Class 14
MATHS
In a prep school, the average weight of ...

In a prep school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?

A

15.2 kg

B

15.5 kg

C

15.4 kg

D

15.6 kg

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET-5

    UPKAR PUBLICATION |Exercise PART-III (QUANTITIVE QPTITUDE)|50 Videos
  • PRACTICE SET-8

    UPKAR PUBLICATION |Exercise PART-III QUANTITATIVE APTITUDE |39 Videos

Similar Questions

Explore conceptually related problems

If the average weight of 6 students is 50 kg , that of 2 students is 51 kg and that of rest of 2 students is 55 kg , then the average weight of all the students is

In a primary school the average weight of male students is 65.9 kg and the average weight of female students is 57 kg. If the average weight of all the students (both male and female) is 60.3 kg and the number of male students in the school is 66, what is the number of female students in the school? (a) 162 (b) 168 (c) 180 (d) 112

The average weight of 55 students is 55 kg , and the average weight of another 45 students is 45 kg . Find the average weight of all the students .

In a class there are total 70 students. The average weight of 26 girls is 28 kg and average weight of the remaining students is 35 kg. What will be the average weight(in kg) of all 70 students?

The average weight of a class of 40 students is 30 and the average weight of a class of 20 students is 15. Find the average weight of both the combined classes :

The average weight of a class of 40 students in 30 and the average weight of a class of 20 students is 15. Find the average weight of both the combined classes:

The average weight of 90 girls in a class is 20. The average weight of a group of 16 girls in the class is 12 kg and the average weight of another 34 girls in the class is 16. What is the average weight of the remaining girls in the class ?

There are 30 students in a class .The average age of the first 10 students is 12.5 years .The average age of the remaining 20 students is 13.1 years .What is the average age (in years ) of the students of the whole class ?

The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class. (a) 47.55 kgs (b) 48 kgs (c) 48.55 kgs (d) 49.25 kgs

UPKAR PUBLICATION -PRACTICE SET-7-PART-III (QUANTITATIVE APTITUDE)
  1. The perimeter of a rectangle and an equilateral triangle are same. Als...

    Text Solution

    |

  2. A solid spherical copper ball, whose diameter is 14 cm, is melted and ...

    Text Solution

    |

  3. Discount on a pair of shoes marked at Rs. 475 and discounted at 15%, i...

    Text Solution

    |

  4. The cost price of an article is Rs. 100. A discount series of 5%, 10% ...

    Text Solution

    |

  5. A grinder was marked at ₹ 3,600. After giving a discount of 10 % the d...

    Text Solution

    |

  6. If x^(2) + 9 y^(2) = 6 xy then x : y is

    Text Solution

    |

  7. In a school (1)/(10) of the boys are same in number as (1)/(4) of the ...

    Text Solution

    |

  8. The average of 8 numbers is 27. If each of the numbers is multiplied b...

    Text Solution

    |

  9. In a prep school, the average weight of 30 girls in a class among 50 s...

    Text Solution

    |

  10. The average age of a husband and his wife was 23 years at the beginnin...

    Text Solution

    |

  11. If the percentage of profit cal culated on selling price of an article...

    Text Solution

    |

  12. A shopkeeper purchased a TV for Rs.2,000 and a radio for Rs.750. He se...

    Text Solution

    |

  13. A container containing 400 litre of oil lost 8% by leakage. Oil left i...

    Text Solution

    |

  14. In an election, three candidates contested. The first candidate got 40...

    Text Solution

    |

  15. A train 120 m long, takes 6 seconds to pass a telegraph post: the spee...

    Text Solution

    |

  16. A train travelled at a speed of 35 km/hr for the first 10 minutes and ...

    Text Solution

    |

  17. What does Rs. 250 amount to in 2 years with compound interest at the r...

    Text Solution

    |

  18. If a sum of money amounts to 12,900 and 14,250 at the end of the 4th y...

    Text Solution

    |

  19. The following table gives the result of a survey based on newspaper re...

    Text Solution

    |

  20. The following table gives the result of a survey based on newspaper re...

    Text Solution

    |