The Sum Of Two Numbers Is 51 And Their Difference Is 11
The problem given says that 2 unknown numbers are given, whose sum is equal to 51 and the difference is 11. Let's find the two numbers :When we add the two numbers :
X + Y = 51
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 = 51 X - Y = 11 2X = 62 |
Let's divide 62 to 2 for the first number "X" .
X/2 = 31
First number is 31
X + Y = 51
So ;
31 + Y = 51
Y = 51 - 31
Y = 20
Second number is 20
Question & Answer
The Sum Of Two Numbers Is 51 And Their Difference Is 11 : 31 And 20