The Sum Of Two Numbers Is 27 And Their Difference Is 4
The problem given says that 2 unknown numbers are given, whose sum is equal to 27 and the difference is 4. Let's find the two numbers :When we add the two numbers :
X + Y = 27
The difference of two numbers :
X - Y = 4
Solution :
If we add the two equations eachother , then we can find the first number.
|
X + Y = 27 X - Y = 4 2X = 31 |
Let's divide 31 to 2 for the first number "X" .
X/2 = 15.5
First number is 15.5
X + Y = 27
So ;
15.5 + Y = 27
Y = 27 - 15.5
Y = 11.5
Second number is 11.5
Question & Answer
The Sum Of Two Numbers Is 27 And Their Difference Is 4 : 15.5 And 11.5