The Sum Of Two Numbers Is 10 And Their Difference Is 5
The problem given says that 2 unknown numbers are given, whose sum is equal to 10 and the difference is 5. Let's find the two numbers :When we add the two numbers :
X + Y = 10
The difference of two numbers :
X - Y = 5
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 10 X - Y = 5 2X = 15 |
Let's divide 15 to 2 for the first number "X" .
X/2 = 7.5
First number is 7.5
X + Y = 10
So ;
7.5 + Y = 10
Y = 10 - 7.5
Y = 2.5
Second number is 2.5
Question & Answer
The Sum Of Two Numbers Is 10 And Their Difference Is 5 : 7.5 And 2.5