Quiz Discussion

A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is

Course Name: Quantitative Aptitude

  • 1]

    285

  • 2]

    276

  • 3]

    280

  • 4]

    290

Solution
No Solution Present Yet

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# Quiz
1
Discuss

The average age of three boys is 15 years. If their ages are in ratio 3 : 5 : 7, the age of the youngest boy is

 

  • 1] 21 years
  • 2] 18 years
  • 3] 15 years
  • 4] 9 years
  • 5] 12 years
Solution
2
Discuss

The average of 10 items was found to be 80 but while calculating, one of the items was counted as 60 instead of 50. Then the correct average would have been :

  • 1] 69
  • 2] 79.25
  • 3] 79
  • 4] 79.5
Solution
3
Discuss

Four years ago, the average age of a family of four persons was 18 years. During this period, a baby was born. Today if the average age of the family is still 18 years, the age of the baby is

  • 1] 1.2 years
  • 2] 2 years
  • 3] 2.5 years
  • 4] 3 years
Solution
4
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
5
Discuss

The average monthly salary of 12 workers and 3 managers in a factory was Rs. 600. When one of the manager whose salary was Rs. 720, was replaced with a new manager, then the average salary of the team went down to 580. What is the salary of the new manager?

  • 1] 640
  • 2] 690
  • 3] 420
  • 4] 570
Solution
6
Discuss

Find the average of the following sets of scores:385, 441, 876, 221, 536, 46, 291, 428

  • 1] 221
  • 2] 403
  • 3] 428
  • 4] 536
  • 5] None of these
Solution
7
Discuss

The average of the ages of Sumit, Krishna and Rishabh is 43 and the average of the ages of Sumit, Rishabh and Rohit is 49. If Rohit is 54 years old, what is Krishna’s age?

  • 1] 24 years
  • 2] 36 years
  • 3] 45 years
  • 4] Cannot be determined
  • 5] None of these
Solution
8
Discuss

The mean of 100 items was 46. Later on it was discovered that an item 16 was misread as 61 and another item 43 was misread as 34. It was also found that the number of item was 90 and not 100. Then what is the correct mean ?

  • 1] 50
  • 2] 50.7
  • 3] 52
  • 4] 52.7
Solution
9
Discuss

The average of a group of men is increased by 5 years when a person aged of 18 years is replaced by a new person of aged 38 years. How many men are there in the group?

 

  • 1] 3
  • 2] 4
  • 3] 5
  • 4] 6
  • 5] 7
Solution
10
Discuss

The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :

  • 1] 312
  • 2] 222
  • 3] 213
  • 4] 303
Solution
# Quiz