self Maths Puzzle Numerical Ability Age Problem

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)

Read Solution (Total 2)

let the present ages of bipin, alok, chandan are b,a,c respectively
given conditions are
1)b=6a
2)(b+10)=2*(c+10)
3)chandans present age=c=10 years
therefore b=30
so a=5
11 years agoHelpfull: Yes(15) No(2)

Present age of Alok=5, Bipin=30, Chandan=10 years
11 years agoHelpfull: Yes(3) No(8)

self Other Question

If the gross salary for first year is Rs. 45000 and an employee has two options to choose from for increment .Either he can opt for 4% yearly increase or Rs. 25000/- yearly increase on the gross salary. If an employee choose the first option, after how many years his salary will be more than the option two ? 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!