Quiz Discussion

Average of a, b, and c is 11; average of c, d and e is 17; average of e and f is 22 and average of e and c is 17. Find out the average of a, b, c, d, e and f.

Course Name: SQL -Structured Query Language

  • 1]

    \(15\frac{2}{3}\)

  • 2]

    \(18\frac{1}{2}\)

  • 3]

    \(16\frac{1}{2}\)

  • 4]

    None of these

Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

The average of the first five multiples of 3 is-

  • 1] 3
  • 2] 9
  • 3] 12
  • 4] 15
Solution
3
Discuss

The average age of four boys A, B, C and D is 5 years and the average age A, B, D, E is 6 years. C is 8 years old. The age of E is (in years) :

  • 1] 12
  • 2] 13
  • 3] 14
  • 4] 15
Solution
4
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
5
Discuss

The average of 6 numbers is 7. The average of three numbers of them is 5. What will be the average of remaining numbers?

  • 1] 15
  • 2] 30
  • 3] 9
  • 4] 42
Solution
6
Discuss

A student finds the average of 10, 2 digits numbers. If the digits of one of the numbers interchanged, the average increases by 3.6. The difference between the digits of the 2 digits number is :

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

Average of 80 numbers are 42. When 5 more numbers are included, the average of 85 numbers become 45. Find the average of 5 numbers.

  • 1] 82
  • 2] 89
  • 3] 93
  • 4] 98
Solution
8
Discuss

The average weight of 47 balls is 4 g. if the weight of the bag (in which the balls are kept) be included; the calculated average weight per ball increases by 0.3 g. What is the weight of the bag?

  • 1] 14.8 g
  • 2] 14.4 g
  • 3] 15 g
  • 4] 18.6 g
  • 5] None of these
Solution
9
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
10
Discuss

A man started his journey from Lucknow to Kolkata, which is 200 km, at the speed of 40 kmph then he went to Banglore which is 300 km, at the speed of 20 kmph. Further he went to Ahmedabad which is 500 km, at the speed of 10 kmph. The average speed of the man is :

  • 1]

    kmph

  • 2]

    Kmph

  • 3]

    15.6 kmph

  • 4]

    16.1 kmph

Solution
# Quiz