The Sum Of Two Numbers Is 87 And Their Difference Is 24
The problem given says that 2 unknown numbers are given, whose sum is equal to 87 and the difference is 24. Let's find the two numbers :When we add the two numbers :
X + Y = 87
The difference of two numbers :
X - Y = 24
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 87 X - Y = 24 2X = 111 |
Let's divide 111 to 2 for the first number "X" .
X/2 = 55.5
First number is 55.5
X + Y = 87
So ;
55.5 + Y = 87
Y = 87 - 55.5
Y = 31.5
Second number is 31.5
Question & Answer
The Sum Of Two Numbers Is 87 And Their Difference Is 24 : 55.5 And 31.5