Question

average marks of three section A,B,C 74,46,82 respectively. If the average marks of section A&B is 58 and that B&C is 66 what is the average of all the three section​

Answer 1

Answer:

Average = sum of objervation ÷ by number of objervation

Average = 78+ 46+ 82÷ 2

Average = 206 ÷ by 2

Average = 103

A and B average no. = 58 EQ 1

B and C average no. = 66 EQ 2

Now we add EQ 1 and 2

58 + 66 = 124

206 - 124 = 82

The average of all three section is 58, 66, 82

Good question