Question

the average of 5 consecutive numbers is n.If the next two numbers are also included then the average of 7 numbers will.?​

Answer 1

Answer: 7n+7

Step-by-step explanation: (x+ x+1 + x+2 + x+3 + x+4)/5 =n

x+ x+1 + x+2 + x+3 + x+4 = 5n

5x+10=5n

x+2=n------>1

Average of 7no.s:--

x+ x+1 + x+2 + x+3 + x+4 + x+5 + x+6=7x+21=7(x+3)=7(n+1)=7n+7