Question

Sum of two numbers are 25. One is 5 more than other

Answer 1

Answer:

Let the numbers be x and x + 5

x + x + 5 = 25x+x+5=25

2x + 5 = 252x+5=25

2x = 25 - 52x=25−5

2x = 202x=20

x = 10x=10

Numbers are 10 and 15

Answer 2

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Let the two numbers be ‘X’ and ‘Y’ …

Then ,

X+Y =25 and X-Y=5 …

Simply adding the equations (Left hand variables with left hand and right hand number with right hand ) as ;

X+Y+X-Y =25+5

or 2X=30 Since two times of X is 30 , X should be 15 and from X+Y=25 .. We get 10 added with 15 as 25 .So Y should be 10 .

So the two numbers are 15 and 10 .