Quiz Discussion

The average of runs of a cricket player of 10 innings was 32. How many runes must be made in his next innings so as to increase his average of runs by 4?

Course Name: Quantitative Aptitude

  • 1] 72
  • 2] 74
  • 3] 70
  • 4] 76
Solution
No Solution Present Yet

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# Quiz
1
Discuss

Out of 9 persons, 8 persons spent Rs. 30 on each of their meals. The ninth one spends Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was

  • 1]

    Rs 260

  • 2]

    Rs 290

  • 3]

    Rs 292.5

  • 4]

    Rs 400.5

Solution
2
Discuss

The mean weight of 100 students in a class is 46 kg. The mean weight of boys is 50 and of girls is 40 kg. Therefore, the number of boys is:

  • 1] 50
  • 2] 60
  • 3] 70
  • 4] 65
Solution
3
Discuss

The average of the first five multiples of 9 is:

 

  • 1] 20
  • 2] 27
  • 3] 28
  • 4] 30
Solution
4
Discuss

What is the average of the first six (positive) odd number each of which is divisible by 7?

  • 1] 42
  • 2] 43
  • 3] 47
  • 4] 49
Solution
5
Discuss

If the arithmetic mean of 0, 5, 4, 3 is a, that of -1, 0, 1, 5, 4, 3 is b and that of 5, 4, 3 is c, then the relation between a, b, and c is

  • 1] a = b = c
  • 2] a : b : c = 3 : 2 : 4
  • 3] 4a = 5b = c
  • 4] a + b + c = 12
Solution
6
Discuss

The average of the first 100 positive integers is-

  • 1] 49.5
  • 2] 50.5
  • 3] 51
  • 4] 100
Solution
7
Discuss

The average monthly salary of 660 workers in a factory is Rs. 380. The average monthly salary of officers is Rs. 2100 and the average monthly salary of the other workers is Rs. 340. Find the number of other workers.

 

  • 1] 645
  • 2] 650
  • 3] 640
  • 4] 642
Solution
8
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
9
Discuss

10 years ago, the average age of a family of 4 members was 24 years. Two children having been born (with age difference of 2 years), the present average age of the family is again 24 years. Then the present age of the youngest child is:

  • 1]

    1 years

  • 2]

    2 years

  • 3]

    3 years

  • 4]

    4 years

Solution
10
Discuss

In a school with 600 students, the average age of the boys is 12 years and that of the girls is 11 years. If the average of the school is 11 years 9 months, then the average the number of girls in the school is :

  • 1] 150
  • 2] 250
  • 3] 350
  • 4] 450
Solution
# Quiz