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?
Answer & explanation
Correct answer: option 1
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