self Maths Puzzle undefined

Renuka got married 8 years ago. Today her age is 4/3 times of marriage. Her daughter age is 1/8 times her age. her daughter age is
(a)3 years
(b)4 years
(c)6 years
(d)8 years
Explain it please!

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self Other Question

Bipin is 6 times old as Alok. Bipin's age will be twice of Chandan's age after 10 years. If Chandan's 7th birthday was celebrated 3 years ago, what is Alok's present age ?
Explained the concept(As i am taking Current age of Chandan 10 but not get the answer please explain it)
. If x + 1/x = 2 then find x2 + 1/x2