Quiz Discussion

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 :

Course Name: Quantitative Aptitude

  • 1] 69
  • 2] 79.25
  • 3] 79
  • 4] 79.5
Solution
No Solution Present Yet

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# Quiz
1
Discuss

The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is :

  • 1] 10 years 4 months
  • 2] 12 years 4 months
  • 3] 11 years 2 months
  • 4] 13 years 6 months
Solution
2
Discuss

Four years ago, the average age of A and B was 18 years. At present the average age of A, B, and C is 24 years. What would be the age of C after 8 years?

  • 1] 25 years
  • 2] 28 years
  • 3] 32 years
  • 4] 36 years
Solution
3
Discuss

A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :

  • 1] 130
  • 2] 128
  • 3] 70
  • 4] 68
Solution
4
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
5
Discuss

Amount five people with monthly income (in Rs.) 15000, 26000, 16000, 19000, 50000, how many will have income less than the mean income of five people?

  • 1] 1
  • 2] 2
  • 3] 3
  • 4] 4
Solution
6
Discuss

The average income of A, B and C is Rs. 12,000 per month and average income of B, C and D is Rs. 15,000 per month. If the average salary of D be twice that of A, then the average salary of B and C is in Rs. :

  • 1] 8,000
  • 2] 18,000
  • 3] 13,500
  • 4] 9,000
Solution
7
Discuss

A set A consists of integers 27, 28, 30 and 33. If integer k is included in the set, the average of set A will increase by 30%. What is the value of integer k ?

  • 1] 68
  • 2] 79
  • 3] 73.75
  • 4] 75.25
Solution
8
Discuss

The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. If he saves Rs. 2900 in that year, his monthly average income is-

  • 1] Rs. 1500
  • 2] Rs. 1600
  • 3] Rs. 1700
  • 4] Rs. 1400
Solution
9
Discuss

The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number?

  • 1] 52
  • 2] 108
  • 3] 321
  • 4] Cannot be determined
  • 5] None of these
Solution
10
Discuss

Find the average of first 97 natural numbers.

 

  • 1] 47
  • 2] 37
  • 3] 48
  • 4] 49
  • 5] 49.5
Solution
# Quiz