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4 9 6 8 7 8 3 7 9 6 8 3 3 3 4 6 6 7 7 8 8 8 9 9 Required difference = 8 – 4 = 4.
What is the average of the squares of the first 47 natural numbers?
The average height of each student in a class of 36 students is 169 cm. If 4 new students joined the class, then the average height of the each student ...
There are three distinct numbers ‘u’, ‘v’ and ‘w’. If, u = 240, (u + v) = 540 and (w – v) = 60, then find the average of u, v and w.
...The average weight of 28 students in a class is 40 kg while the average weight of 5 teachers who teach them is 58 kg. 10 students and 1 teacher go for a...
‘N’ is the number of employees in an IT company ‘ABC’. The average age of employees working in the company is 45 years. What wil...
The average height of the boys in a class is 160 cm, while the average height of the girls is 155 cm. The overall average height of all students in the ...
The average weight of 8 persons increased by 1.5 kg when a person weighing 65 kg is replaced by a new person. What could be the weight of a new person?
The average age of a group of persons going for tour to Shimla is 22 years. 25 new persons with an average age of 10 years join the group and their aver...
