The Sum Of Two Numbers Is 45 And Their Difference Is 10
The problem given says that 2 unknown numbers are given, whose sum is equal to 45 and the difference is 10. Let's find the two numbers :When we add the two numbers :
X + Y = 45
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 = 45 X - Y = 10 2X = 55 |
Let's divide 55 to 2 for the first number "X" .
X/2 = 27.5
First number is 27.5
X + Y = 45
So ;
27.5 + Y = 45
Y = 45 - 27.5
Y = 17.5
Second number is 17.5
Question & Answer
The Sum Of Two Numbers Is 45 And Their Difference Is 10 : 27.5 And 17.5