Quiz Discussion

The average weight of A, B and C is 40 kgs. Weight of C is 24 kgs more than A’s weight and 3 kgs less than B’s weight. What will be the average weight of A, B, C and D, if D weights 15 kgs less than C?

Course Name: SQL -Structured Query Language

  • 1] 42 kgs
  • 2] 40 kgs
  • 3] 36 kgs
  • 4] 38 kgs
Solution
No Solution Present Yet

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# Quiz
1
Discuss

In a primary school the average weight of male students is 65.9 kg and the average weight of female students is 57 kg. If the average weight of all the students ( both male and female ) is 60.3 kg and the number of male students in the school is 66, what is the number of female students in the school?

  • 1] 162
  • 2] 168
  • 3] 180
  • 4] 112
Solution
2
Discuss

The average of four consecutive even numbers is 15. The 2nd highest number is :

  • 1] 12
  • 2] 18
  • 3] 14
  • 4] 16
Solution
3
Discuss

The average price of 10 books is Rs.12 while the average price of 8 of these books is Rs.11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?

  • 1] Rs. 5, Rs.7.50
  • 2] Rs. 8, Rs. 12
  • 3] Rs. 16, Rs. 10
  • 4] Rs. 12, Rs. 14
Solution
4
Discuss

The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of all the boys in the class becomes:

  • 1] 8.2 years
  • 2] 9.5 years
  • 3] 12.5 years
  • 4] 11 years
Solution
5
Discuss

A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreased his average by 0.4. The number of wickets taken by him the last match was-

  • 1] 64
  • 2] 72
  • 3] 80
  • 4] 85
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

The average age of a family of 10 members is 20 years. If the age of the youngest member of the family is 10 years, then the average age of the members of the family just before the birth of the youngest member was approximately.

  • 1]

    27.14 years

  • 2]

    12.5 years

  • 3]

    14.28 years

  • 4]

    \(11\frac{1}{9}\) years

Solution
8
Discuss

The average of 25 results is 18. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13th result?

 

  • 1] 74
  • 2] 75
  • 3] 69
  • 4] 78
Solution
9
Discuss

If the average of 5 consecutive integers is x then, find the average of next to next 5 consecutive integers.

  • 1] x + 5
  • 2] x - 5
  • 3] x + 10
  • 4] x + 25
Solution
10
Discuss

Distance between two stations A and B is 778km. A train covers the journey from A to B at 84 km per hour and returns back to A with a uniform speed of 56 km per hour. Find the average speed of train during the whole journey.

  • 1]

    60 km/hr

  • 2]

    30.5 km/hr

  • 3]

    57 km/hr

  • 4]

    67.2 km/hr

Solution
# Quiz