The Sum Of Two Numbers Is 85 And Their Difference Is 10
The problem given says that 2 unknown numbers are given, whose sum is equal to 85 and the difference is 10. Let's find the two numbers :When we add the two numbers :
X + Y = 85
The difference of two numbers :
X - Y = 10
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 85 X - Y = 10 2X = 95 |
Let's divide 95 to 2 for the first number "X" .
X/2 = 47.5
First number is 47.5
X + Y = 85
So ;
47.5 + Y = 85
Y = 85 - 47.5
Y = 37.5
Second number is 37.5
Question & Answer
The Sum Of Two Numbers Is 85 And Their Difference Is 10 : 47.5 And 37.5