The Sum Of Two Numbers Is 30 And Their Difference Is 1
The problem given says that 2 unknown numbers are given, whose sum is equal to 30 and the difference is 1. Let's find the two numbers :When we add the two numbers :
X + Y = 30
The difference of two numbers :
X - Y = 1
Solution :
If we add the two equations eachother , then we can find the first number.
X + Y = 30 X - Y = 1 2X = 31 |
Let's divide 31 to 2 for the first number "X" .
X/2 = 15.5
First number is 15.5
X + Y = 30
So ;
15.5 + Y = 30
Y = 30 - 15.5
Y = 14.5
Second number is 14.5
Question & Answer
The Sum Of Two Numbers Is 30 And Their Difference Is 1 : 15.5 And 14.5