The average weight of a group of 54 males was calculated as 58 kg .It was later discovered that the weight of one of the males was read as 70 kg ,whereas her actual weight was 65kg. What is the actual average weight of the group of 54 males ?

57.4

57.7

57

57.8

57.9

The average weight of 50 stduents in a class was calculated as 42 kg .It was later found that the weight of two students in the class was wrongly calculated .The actual weight of one of the girls in the class was 38kg ,but it was calculated as 40 kg ,and the weight of another girl in the class was 55kg , whereas it was calculated as 50 kg .What is the actual average weight of the 50 students in the class?

40.06

32.06

42.06

42

41.06

68

67

65

Data inadequate

63

Dhoni played three matches in a tournament .The respective ratio between the scores of 1st and 2nd matches was 5 :4 and that between the scores of 2nd and 3rd matches was 2 :1 .The difference between the 1^{st} and 3^{rd} matches was 48 runs . What was the DHONI’s average score in all the three matches ?

58(2/3)

60(2/3)

58(1/3)

61(2/3)

63(2/3)

In a certain year ,the average monthly income of ARSAD was Rs. 3400 . For the first 8 months of the year ,his average monthly income was Rs. 3160 and for the last 5 months ,it was Rs. 4120 .His income in the 8th month of the year ?

4080

5080

5090

5060

5100

Out of three numbers , the first is twice the second and is half of the third .If the average of the three numbers is 56 ,the 3^{RD} number is:

89

96

106

75

77

An flight covers the four sides of square field at speeds of 200 km/hr , 400km/hr , 600km/hr and 800 km/hr .Then the average speed of the flight in the entire journey is ?

389

384

854

654

125

The average salary of the entire employees in IBT is Rs. 130 per month . The average salary of officers is Rs. 540 and that of non – officers is Rs . 114 . If the number of officers is 16 ,then find the number of non- officers in the office IBT

410

400

390

380

350

In a mango grove ,(x+2) trees yield 60 fruits per year per tree , x trees yield 120 fruits per year per tree and (x-2) trees yield 180 fruits per year per tree .If the average yield per year per tree be 100 .Find the value of x ?

7

8

6

4

10

5 years ago, the average age of S, T and R was 25 year; 7 years ago the average age of T & R was 20 years. Find the present age of S ?

39

40

36

37

38