Question

x,y and z are three sections of a class having 36,54 and 90 students . if the average marks of the students of x,y and z are 65,75 and 85 respectively . what are the average marks of the students of the class?​

Answer 1

Answer:

The average or Arithmetic Mean or mean of a given data is defined as : ... DATA HANDLING 65 ... Let x, y, z be three observations. The mean of these observations is. (a). × ×. 3. x y z. Consider a class of 40 students whose average weight is 40 kgs. m new students ... If x > y, how many integer values can x take? ... 44 and 65; 21 and 42; 34 and 55 ; 54 and 75.

Step-by-step explanation:

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Answer 2

Answer:

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Step-by-step explanation:

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