The Sum Of Two Numbers Is 71 And Their Difference Is 11
The problem given says that 2 unknown numbers are given, whose sum is equal to 71 and the difference is 11. Let's find the two numbers :When we add the two numbers :
X + Y = 71
The difference of two numbers :
X - Y = 11
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 71 X - Y = 11 2X = 82 |
Let's divide 82 to 2 for the first number "X" .
X/2 = 41
First number is 41
X + Y = 71
So ;
41 + Y = 71
Y = 71 - 41
Y = 30
Second number is 30
Question & Answer
The Sum Of Two Numbers Is 71 And Their Difference Is 11 : 41 And 30