The Sum Of Two Numbers Is 72 And Their Difference Is 10
The problem given says that 2 unknown numbers are given, whose sum is equal to 72 and the difference is 10. Let's find the two numbers :When we add the two numbers :
X + Y = 72
The difference of two numbers :
X - Y = 10
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 72 X - Y = 10 2X = 82 |
Let's divide 82 to 2 for the first number "X" .
X/2 = 41
First number is 41
X + Y = 72
So ;
41 + Y = 72
Y = 72 - 41
Y = 31
Second number is 31
Question & Answer
The Sum Of Two Numbers Is 72 And Their Difference Is 10 : 41 And 31