sum of the two natural numbers is 8/8 and their difference of their reciprocal is 2/15 .find the number
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Answered by
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Answer:
Let 1st no. be x and 2nd be 8−x.
By the given condition,
x
1
−
8−x
1
=
15
2
⇒
x(8−x)
8−x−x
=
15
2
⇒
8x−x
2
8−2x
=
15
2
⇒120−30x=16x−2x
2
2x
2
−46x+120=0
x
2
−23x+60=0
x
2
−20x−3x+60=0
x(x−20)−3(x−20)=0
(x−3)(x−20)=0
x=3 or x=20 not possible
1
st
no. =3 and 2
nd
no. =8−3=5.
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