The girl's age is twice that of boy, if the boy is four years old. After four years the age of the girl is

12 years

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Anjali Chowdary

  • Dec 2nd, 2005

Answer:present age is 12 years

hence after 4 years girls age will be 12+4=16 years

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Venkatesh Vukkadapu

  • Jun 17th, 2014

Present boy age =4 years
given girls age is twice of boys age So the girl age =8 years
after 4 years the age of girl is= 8+4=12 years


  • Jul 13th, 2014

Let age of Boy and Girl be x and y respectively.

When the boy is 4 years old then Girl y=2x=2x4=8;
After 4 years the girl will be 8+4=12 Years.

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  • Jul 18th, 2014

nw the boy age is 4 means nw the girl age 8... so after four the girl age is 8+4=12

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  • Aug 22nd, 2014

8 years

if the age of the boy is 2, the girl age is twice of the boy, so it is 4
when the boy age is (2+4 = 6), then the girl age is (4+4= 8) ... there are many more comparison to come up

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  • Aug 27th, 2014

girl=2*boys, boy=4, girl age present=2*4=8, after 4yr, 8+4=12. so ans is 12..,

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  • Sep 18th, 2014

twelve years

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  • Jan 2nd, 2015

let X=age of the girl
and 2x=age of the boy when the girl is x years old
2x=4 current age of the boy
then, x=4/2, x=2 years old current age of the girl
after 4 years, the age of the girl will be 2+4=6
Answer: 6 years old

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Arvind kr shah

  • Jan 5th, 2015

let the age of girl be x
the age of boy be y
as per given x=2y
then x=2x4
after 4years the girl age is x=8+4
x=12 ANSwer

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  • Mar 23rd, 2015

The answer is 5. Lets say the boy is 1yr old and at that time girls is 2yrs old. Eventually when the boy is 4, the girl would be 5.

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  • Apr 6th, 2015

Keep the answer as general as possible.
when boy is 4, girl is 8; after 4 years the girl is 8 + 4 + x= 12 + x (where x is any number of years after the four years we already counted)

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  • Apr 22nd, 2015

A=2B, B=4, SO A=2*4=8, A=8+4=12, ANSWER A=12

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  • May 6th, 2015


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  • May 15th, 2015

12 years

  1. shh

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  • Jun 4th, 2015


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  • Jul 14th, 2015


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Dimple Rustagi

  • Jul 14th, 2015


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Myron Constancio Fernandes

  • Aug 1st, 2015

Its goes like this ( when the boy was 1 year the girl was 2 years, 1:2) 4:5,5:6,6:7,7:8 so the answer is 8 years
8 years

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  • Aug 12th, 2015


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Mithilesh Kumar Rajak

  • Sep 1st, 2015

present age of boy is twice = 4*2 = 8
after 4 years girls age = 8+4 = 12 years

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  • Dec 22nd, 2015

Now the age of boy is 4. so, Girl age is 8. After 4 years, The age is 8+4= 12

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Yasir Arafat

  • Dec 24th, 2015

Now the age of boys 4
after 4 year age of boys 4+4=8
after 4 years girl 8+4=12

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  • Apr 10th, 2016

The first statement is just a reference to determine the girls age is 4 years older than the boys when he was 4. We dont know what the bits age was 4 years ago. The boy could easily be 4 or older, making the girl 12 or older 4 years later.

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  • Apr 7th, 2017

They are currently 8 and 4 since she is twice his age. In four years time she will still be 4 only years older than him (no longer twice his age). Since she will then be 12 and he will still be 4 years younger, he will be 8. (12-4 =8)

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  • Jun 16th, 2017

if boys age = x years, girls age = 2x years,
so boy age =4 years, girl age =2*4=8 years
after 4 years girls age= 8+4 =12 yeras
so Ans is 12 years

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Vivek Machha

  • Jun 24th, 2017

If boy age is 1 then girl age will be 2 so, after 4 years girl age will be 5 years n boy age will be 4

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  • Jul 25th, 2017

if one side of small cube = x cm
then 8(x^3) = 128
it means (2^3)(x^3)=3/128
so 2x =3/128
it means 2x = one side of a big cube
small cube/big cube = 1/2 =0.5

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Sameer kumar

  • Aug 20th, 2017

boys age = x years
girls age = twice (boys age) = 2x years
as given boysage = 4 years i.e. x=4
girls age = 2 x 4 = 8 years
girls age after 4 years = 8 + 4 = 12 years

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Rintu Kumar Chowdhury

  • Aug 24th, 2017

girls age = boys age * 2 = 4 * 2 = 8
after 4 years, Girls age = 8 + 4 = 12 years.

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  • Jun 16th, 2018

boys age 4
girls age twice older then the boy-6
then after 4 years the girls age will be 10
Because 6+4= 10

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  • Aug 10th, 2018

Boy is 4 year old =girl is 8 year
after 4 year later 8+4 =12

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