Quiz Discussion

The average age of P, Q and R is 15 years more than R's age. If the total age of P and Q together is 39 years, then R's age is ?

Course Name: SQL -Structured Query Language

  • 1] 12 years
  • 2] 24 years
  • 3] 16 years
  • 4] 14 years
Solution
No Solution Present Yet

Top 5 Similar Quiz - Based On AI&ML

Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api

# Quiz
1
Discuss

40% of the employees in a factory are workers. All the remaining employees are executives. The annual income of each worker is Rs. 390. The annual income of each executive is Rs. 420. What is the average annual income of all the employees in the factory together?

  • 1] 390
  • 2] 405
  • 3] 408
  • 4] 415
Solution
2
Discuss

An elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ?

  • 1] 112 kg
  • 2] 108 kg
  • 3] 110 kg
  • 4] 98 kg
Solution
3
Discuss

In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?

  • 1] 2
  • 2] 2.5
  • 3] 3
  • 4] 3.5
Solution
4
Discuss

The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. The father's age is :

  • 1] 33 years
  • 2] 39 years
  • 3] 45 years
  • 4] 40 years
Solution
5
Discuss

The average age of A, B, C, D and E is 40 years. The average age of A and B is 35 years and the average of C and D is 42 years. Age of E is :

  • 1] 48 years
  • 2] 46 years
  • 3] 42 years
  • 4] 45 years
Solution
6
Discuss

The average sale of car dealership was 15 cars per week. After a promotional scheme the average sale increased to 21 cars per week. The percentage increased in the sale of cars was-

  • 1]

    39.33%

  • 2]

    40%

  • 3]

    \(42\frac{6}{7}\)%

  • 4]

    140%

Solution
7
Discuss

In an exam, the average marks obtained by Jhon in English, Math, Hindi and Drawing were 50. His average mark in Maths, Science, Social Studies and Craft were 70. If the average mark in all seven subjects is 58, his score in Maths was -

  • 1] 50
  • 2] 52
  • 3] 60
  • 4] 74
Solution
8
Discuss

Average weight of 25 students of a class is 50 kg. If the weight of the class teacher is included , the average is increased by 1 kg. The weight of the teacher is ?

  • 1] 76 kg
  • 2] 77 kg
  • 3] 74 kg
  • 4] 75 kg
Solution
9
Discuss

If the mean of 4 observations is 20, when a constant 'c' is added to each observation, the mean becomes 22. The value of c is :

  • 1]

    6

  • 2]

    -2

  • 3]

    2

  • 4]

    4

Solution
10
Discuss

The average of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. The correct average of the observation is -

  • 1] 28
  • 2] 42
  • 3] 32
  • 4] 45
Solution
# Quiz