The average of seven numbers is 9. If each number is multiplied by a number P, then the average becomes 36. What is the value of P?

4 18 27 5

4

If each number in series is multiplied by any number , then new average is also multiple of that number . Each number is multiplied by = P Then , 9 × P = 36 P = 4 So , Value of P = 4