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##### SSC CGL 2019 objective Ques (6 results)
1)

The average of thirteen numbers is 47. The average of the first three numbers is 39 and that of next seven numbers is 49. The 11th number is two times the 12th number and 12th number is 3 less than the 13th number. What is the average of 11th and 13th number?

SSC CGL 2019
A)

54.5

B)

57

C)

56

D)

55.5

2)

The number of students in a class is 75, out of which 33$${1 \over 3}$$% are boys and the rest are girls. The average score in mathematics of the boys is 66$${2 \over 3}$$% more than that of the girls. If the average score of the all students is 66, then the average score of the girls is :

SSC CGL 2019
A)

52

B)

55

C)

54

D)

58

3)

The average age of 120 students in a group is 13.56 years. 35% of the number of students are girls and the rest are boys. If the ratio of the average age of boys and girls is 6 : 5, then what is the average age (in years) of the girls?

SSC CGL 2019
A)

12

B)

11.6

C)

10

D)

14.4

4)

The average of 18 numbers is 37.5. If six numbers of average X are added to them, then the average of all the numbers increases by one, The value of x is:

SSC CGL 2019
A)

40

B)

41.5

C)

42

D)

38.5

5)

The average weight of a certain number of students in a group is 72 kg. If 10 students having an average weight of 78 kg leave and 4 students having an average weight of 80 kg join the group, the average weight of the students in the group decreases by 0.7 kg, The number of students initially in the group is:

SSC CGL 2019
A)

56

B)

46

C)

44

D)

54

6)

The average of 33 numbers is 74. The average of the first 17 numbers is 72.8 and that of the last 17 numbers is 77.2. If the 17th number is excluded, then what will be the average of the remaining numbers (correct to one decimal place)?

SSC CGL 2019
A)

72.9

B)

73.4

C)

71.6

D)

70.8

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