The Sum Of Two Numbers Is 68 And Their Difference Is 13
The problem given says that 2 unknown numbers are given, whose sum is equal to 68 and the difference is 13. Let's find the two numbers :When we add the two numbers :
X + Y = 68
The difference of two numbers :
X - Y = 13
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 68 X - Y = 13 2X = 81 |
Let's divide 81 to 2 for the first number "X" .
X/2 = 40.5
First number is 40.5
X + Y = 68
So ;
40.5 + Y = 68
Y = 68 - 40.5
Y = 27.5
Second number is 27.5
Question & Answer
The Sum Of Two Numbers Is 68 And Their Difference Is 13 : 40.5 And 27.5