Question

plz answer the questions

1. Find arithmetic mean of first 6 composite
numbers?
2.Find the arithmetic mean of first 100 natural numbers ?
3.Find the mean of first 10 prime numbers?
4.Find the mean of a-b, a,a+b?
5.The mean of x,x-3,x+5,x-2,2x-6 is 6 then find x?​

Answer 1

Step-by-step explanation:

1. 8.1667 is an average of first 6 composite (non-prime) numbers mentioned in the below table, by substituting the total sum
2. We know that the sum of first 'n' natural numbers is defined as n(n+1)2. ⇒ Arithmetic mean of first 100 natural numbers = 100×(101)2100. Arithmetic mean of first 100 natural numbers = 1012. Arithmetic mean of first 100 natural numbers = 50.5.
3. 12.9 is the mean of first 10 prime numbers.

Answer 2

Answer:

Ist answer

First six composite number

4,6,8,9,10,12

Sum of the numbers 4+6+8+9+10+12=49

Divide the sum by 6

49/6=8.1667