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In a class of 50 students there are 27 girls. The average weight of these girls is 45 kg and average weight of the full class is 49.6 kgs. What is theaverage weight of the boys of the class?
A
55
B
54.2
C
53.4
D
53
Correct Answer:
55
In a class of 39 students there are 26 girls. The average weight of these girls is 42 Kgs and average weight of the full class is 48 kgs. What is theaverage weight (in kgs) of the boys of the class?
A
54
B
66
C
60
D
62
In a class of 50 students there are 27 boys. The average weight of these boys is 72 Kg and average weight of the full class is 55.44 kgs. What is theaverage weight (in kgs) of the girls of the class?
A
42
B
48
C
30
D
36
The ratio of number of boys and girls in a class is 2 : 3. The average weight of boys and girls in the class is 18 kg and 21 kg respectively. What is theaverage weight (in kgs) of all the boys and girls together?
A
99\/5
B
101\/5
C
109\/6
D
96\/5
The average weight of a group of 75 girls was calculated as 47 kgs. It was later discovered that the weight of one of the girls was read as 45 kgs. Whereas her actual weight was 25 kgs. What is the actual average weight of the group of 75 girls? ( Rounded off to two digits after decimal).
A
34
B
36
C
30
D
None of these
In a class of 65 students there are 39 girls. The average weight of these girls is 60 Kg and average weight of the full class is 64 kgs. What is the average weight of the boys of the class?
A
69
B
66
C
68
D
70
In a class of 60 students there are 30 girls. The average weight of these girls is 58 Kg and average weight of the full class is 63 kgs. What is the average weight of the boys of the class?
A
67
B
66
C
68
D
65
The average weight of A, B and C is 40 kgs. Weight of C is 24 kgs more than A’s weight and 3 kgs less than B’s weight. What will be the average weight of A, B, C and D, if D weights 15 kgs less than C?
A
42 kgs
B
40 kgs
C
36 kgs
D
38 kgs
In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the averageweight of the boys of the class?
A
72
B
73
C
69
D
71
In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the averageweight of the boys of the class?
A
62
B
59.4
C
56.8
D
60
In a class of 56 students there are 28 girls. The average weight of these girls is 46 kg and average weight of the full class is 51 kgs. What is the averageweight of the boys of the class?
A
55
B
56
C
53
D
54