the difference of two number is 5 and the difference of their reciprocal is 1 by 10 find the numbers
Answers
Answered by
2
let
x-y=5
x-1/y= 1/10
solve this
xy-1=y/10
10xy-10=y
10xy-y=10
10y(x-1) =10
10y(5+y) =10
50y+10y²=10
10y²+50y-10=0
solve it you got your answer
x-y=5
x-1/y= 1/10
solve this
xy-1=y/10
10xy-10=y
10xy-y=10
10y(x-1) =10
10y(5+y) =10
50y+10y²=10
10y²+50y-10=0
solve it you got your answer
Answered by
1
Assumption,
First number be p
Second number be p - 5
Here,
p > (p - 5)
= 1/p < 1/p - 5
So,
= 1/p - 5 > 1/p
Situation,
1/p - 5 - 1/p = 1/10
p - (p - 5)/(p - 5)p = 1/10
5/(p - 5)p = 1/10
(p - 5)p = 50
p² - 5p - 50 = 0
p² - 10p + 5p - 50 = 0
p(p - 10) + 5(p - 10) = 0
(p - 10)(p + 5) = 0
p - 10 = 0 or p + 5 = 0
p = 10, -5 (Negative value is not acceptable)
p = 10
First Number = p = 10
Second Number
= p - 5
= 10 - 5
= 5
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