Question

If the average number of 8 terms is given to be 40 and the average of first 6 terms is given to be 35.What is the average of the remaining 2 terms?​

Answer 1

Answer:

= 55

Step-by-step explanation:

Sum of all the 8 terms = 320.

The sum of first 6 terms = 210

Now , the sum of remaining terms = 320 – 210 = 110

So , the average of 2 terms would be = 110/2 = 55

Answer 2

Answer:

The sum of all the observations here is 87 + 84 + 86 + 90 +82 + 88 +78 = 595

Number of observations = 7

So, Average = 595/7 = 85