The Sum Of Two Numbers Is 90 And Their Difference Is 8
The problem given says that 2 unknown numbers are given, whose sum is equal to 90 and the difference is 8. Let's find the two numbers :When we add the two numbers :
X + Y = 90
The difference of two numbers :
X - Y = 8
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 90 X - Y = 8 2X = 98 |
Let's divide 98 to 2 for the first number "X" .
X/2 = 49
First number is 49
X + Y = 90
So ;
49 + Y = 90
Y = 90 - 49
Y = 41
Second number is 41
Question & Answer
The Sum Of Two Numbers Is 90 And Their Difference Is 8 : 49 And 41