Quiz Discussion

A cricketer scored some runs in his 21st innings, as a result, his average runs increased by 3. If the present average run is 40, how many runs he scored in the final innings?

Course Name: SQL -Structured Query Language

  • 1] 103
  • 2] 100
  • 3] 85
  • 4] 82
Solution
No Solution Present Yet

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# Quiz
1
Discuss

The average sale of car dealership was 15 cars per week. After a promotional scheme the average sale increased to 21 cars per week. The percentage increased in the sale of cars was-

  • 1]

    39.33%

  • 2]

    40%

  • 3]

    \(42\frac{6}{7}\)%

  • 4]

    140%

Solution
2
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
3
Discuss

Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is :

  • 1] 1 m 12.1 cm
  • 2] 1 m 21.1 cm
  • 3] 1 m 21 cm
  • 4] 1 m 12 cm
Solution
4
Discuss

The average of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. The correct average of the observation is -

  • 1] 28
  • 2] 42
  • 3] 32
  • 4] 45
Solution
5
Discuss

The mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C then the temperature of the 4th day is :

  • 1] 25°C
  • 2] 25.2°C
  • 3] 25.6°C
  • 4] 25.5°C
Solution
6
Discuss

Mean of 10 numbers is 30. Later on it was observed that numbers 15, 23 are wrongly taken as 51, 32. The correct mean is :

  • 1] 25.5
  • 2] 32
  • 3] 30
  • 4] 34.5
Solution
7
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
8
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
9
Discuss

The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother ?

  • 1] 40 years
  • 2] 42 years
  • 3] 48 years
  • 4] 50 years
Solution
10
Discuss

The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, then find the average for the last four matches.

  • 1] 33.25
  • 2] 33.5
  • 3] 34.25
  • 4] 35
Solution
# Quiz