The Sum Of Two Numbers Is 77 And Their Difference Is 27
The problem given says that 2 unknown numbers are given, whose sum is equal to 77 and the difference is 27. Let's find the two numbers :When we add the two numbers :
X + Y = 77
The difference of two numbers :
X - Y = 27
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 77 X - Y = 27 2X = 104 |
Let's divide 104 to 2 for the first number "X" .
X/2 = 52
First number is 52
X + Y = 77
So ;
52 + Y = 77
Y = 77 - 52
Y = 25
Second number is 25
Question & Answer
The Sum Of Two Numbers Is 77 And Their Difference Is 27 : 52 And 25