Question

the avg of 10 numbers is 9. if each no is multiplied by 8 then the new avg of new set of no is​

Answer 1

Answer:

I Think it's a+b+....j/10=9

8 × ( a+b+....j)/10=9×8=72

Answer 2

Answer:

Let sum of all the no. be x then we will get a equation that x/10 = 9 then the value of x will be 90 .

Now multiply 8 to it and divide it by 10 the ans will be 72 .

Hope it helps