The Sum Of Two Numbers Is 72 And Their Difference Is 25
The problem given says that 2 unknown numbers are given, whose sum is equal to 72 and the difference is 25. Let's find the two numbers :When we add the two numbers :
X + Y = 72
The difference of two numbers :
X - Y = 25
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 72 X - Y = 25 2X = 97 |
Let's divide 97 to 2 for the first number "X" .
X/2 = 48.5
First number is 48.5
X + Y = 72
So ;
48.5 + Y = 72
Y = 72 - 48.5
Y = 23.5
Second number is 23.5
Question & Answer
The Sum Of Two Numbers Is 72 And Their Difference Is 25 : 48.5 And 23.5