Quiz Discussion

A librarian purchased 50 storybooks for his library. But he saw that he could get 14 books more by spending Rs. 76 more but per book average becomes Rs. 1 less. The average price (in Rs.) of each book he bought, was :

Course Name: Quantitative Aptitude

  • 1] 15
  • 2] 25
  • 3] 20
  • 4] 10
Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

3 years age, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is same today. The present age of the baby is :

  • 1]

    1 years

  • 2]

    \(1\frac{1}{2} \)years

  • 3]

    2 years

  • 4]

    3 years

Solution
3
Discuss

The average annual income (in Rs.) of certain agricultural workers is S and that of other workers is T. The number of agricultural workers is 11 times that of other workers. Then the average monthly income (in Rs.) of all the workers is 

  • 1]

    (S+T)/2

  • 2]

    (S+11T)/2

  • 3]

    (1/11S)+T

  • 4]

    (11S+T)/12

Solution
4
Discuss

The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teacher is:

  • 1] 30 years
  • 2] 33 years
  • 3] 28 years
  • 4] 35 years
Solution
5
Discuss

In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother doest not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?

  • 1]

    67 Kg

  • 2]

    68 Kg

  • 3]

    69 Kg

  • 4]

    None Of These

Solution
6
Discuss

The average of nine number is 50. The average of first five numbers is 54 and that of the last three numbers is 52. Then the sixth number is :

  • 1] 30
  • 2] 34
  • 3] 24
  • 4] 44
Solution
7
Discuss

What is the average of the first six (positive) odd number each of which is divisible by 7?

  • 1] 42
  • 2] 43
  • 3] 47
  • 4] 49
Solution
8
Discuss

The average age of 3 children in a family is 20% of the average age of the father and the eldest child. The total age of the mother and the youngest child is 39 years. If the father's age is 26 years, what is the age of the second child ?

  • 1] 15 years
  • 2] 18 years
  • 3] 20 years
  • 4] Cannot be determined
Solution
9
Discuss

The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is :

  • 1] 58
  • 2] 56
  • 3] 50
  • 4] 46
Solution
10
Discuss

A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in the month of June beginning with a Sunday?

  • 1] 276
  • 2] 280
  • 3] 285
  • 4] 250
Solution
# Quiz