Quiz Discussion

In a boat there are 8 men whose average weight is increased by 1 kg when 1 man of 60 kg is replaced by a new man. What is weight of new comer?

 

Course Name: Quantitative Aptitude

  • 1] 70 kg
  • 2] 66 kg
  • 3] 68 kg
  • 4] 69 kg
Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

David obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, mathematics, physics, chemistry and biology. What are his average marks?

  • 1] 65
  • 2] 69
  • 3] 75
  • 4] None of these
Solution
3
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
4
Discuss

There are three categories of jobs A, B and C. The average salary of the student who got the job of A and B categories is 26 lakh per annum. The average salary of the students who got the job of B and C category is 44 lakh per annum and the average salary of those students who got the job of A and C categories is 34 lakh per annum. The most appropriate (or closet) range of average salary of all the three categories (if it is known that each student gets only one category of jobs i.e. , A, B and C):

  • 1] lies between 30 and 44
  • 2] lies between 28 and 34
  • 3] lies between 34 and 44
  • 4] lies between 27 and 44
  • 5] None of these
Solution
5
Discuss

A cricketer has a certain average for 9 innings, In the tenth inning he scores 100 runs there by increasing his average by 8 runs. His new average is 

  • 1]

    28 runs

  • 2]

    24 runs

  • 3]

    32 runs

  • 4]

    20 runs

Solution
6
Discuss

The average (arithmetic mean) of 330, 360 and 390 is :

  • 1]

    \({3^{27}} + {3^{57}} + {3^{87}}\)

  • 2]

    \({3^{29}} + {3^{59}} + {3^{89}}\)

  • 3]

    \({3^{60}}\)

  • 4]

    \({3^{177}}\)

Solution
7
Discuss

Find the average of all prime numbers between 30 and 50.

  • 1]

    37.8

  • 2]

    38.9

  • 3]

    39.8

  • 4]

    42.8

Solution
8
Discuss

Out of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20, than first number is :

  • 1] 25
  • 2] 21
  • 3] 23
  • 4] 28
Solution
9
Discuss

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

  • 1]

    0

  • 2]

    -1

  • 3]

    1

  • 4]

    None Of These

Solution
10
Discuss

The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is -

  • 1] 45 kg
  • 2] 50 kg
  • 3] 53 kg
  • 4] 55 kg
Solution
# Quiz