The Sum Of Two Numbers Is 67 And Their Difference Is 18
The problem given says that 2 unknown numbers are given, whose sum is equal to 67 and the difference is 18. Let's find the two numbers :When we add the two numbers :
X + Y = 67
The difference of two numbers :
X - Y = 18
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 67 X - Y = 18 2X = 85 |
Let's divide 85 to 2 for the first number "X" .
X/2 = 42.5
First number is 42.5
X + Y = 67
So ;
42.5 + Y = 67
Y = 67 - 42.5
Y = 24.5
Second number is 24.5
Question & Answer
The Sum Of Two Numbers Is 67 And Their Difference Is 18 : 42.5 And 24.5