The Sum Of Two Numbers Is 48 And Their Difference Is 31
The problem given says that 2 unknown numbers are given, whose sum is equal to 48 and the difference is 31. Let's find the two numbers :When we add the two numbers :
X + Y = 48
The difference of two numbers :
X - Y = 31
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 48 X - Y = 31 2X = 79 |
Let's divide 79 to 2 for the first number "X" .
X/2 = 39.5
First number is 39.5
X + Y = 48
So ;
39.5 + Y = 48
Y = 48 - 39.5
Y = 8.5
Second number is 8.5
Question & Answer
The Sum Of Two Numbers Is 48 And Their Difference Is 31 : 39.5 And 8.5