Question

find the number when 15 is added to a number , the sum is 65​

Answer 1

Step-by-step explanation:

Therefore the average sum of three numbers is 45:3=15. The number 15 is called the magic number of the 3x3 square. You can also achieve 15, if you add the middle number 5 three times. The odd numbers 1,3,7, and 9 occur twice in the reductions, the even numbers 2,4,6,8 three times and the number 5 once.

Answer 2

Answer:

15+x=65

x= 65-15

x= 50

Hope it helps and to everyone