Latest TCS Aptitude Question SOLUTION: roy is now 4 years older than erik and half of that amount older than iris. if in 2 years, roy wil be twiceas old as erik then in two years what would be roy's age multiplied by ir

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roy is now 4 years older than erik and half of that amount older than iris. if in 2 years, roy wil be twiceas old as erik then in two years what would be roy's age multiplied by iris age
a)28
b)48
c)50
d)52

Asked In TCS krishnaprasad TATA (12 years ago)

Unsolved Read Solution (6)

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Read Solution (6) :

vikranth  (12 years ago)

At present
roy=erik+4....(1)
roy=iris+2....(2)
In 2yrs,
roy+2=2(erik+2)
(erik+4)+2=2(erik+2)....from(1)
erik=2yrs
so,roy=6yrs
iris=4yrs
after 2years
roy*iris=8*6=48

Is this solution Helpfull? Yes (130) | No (9)  

Aman  (12 years ago)

At present
age of roy ... 6 yrs, age of erik = 2 yrs, age of iris = 4 yrs
after 2 yrs , age of roy = 8 yrs, age of iris = 6 yrs
After two years roy's age multiplied by iris age = 8*6= 48 yrs

Is this solution Helpfull? Yes (20) | No (8)  

lohitha  (10 years ago)

given that now roy is 4 years older that eric so
roy=4+eric -->1
and half of that older than iris
roy=2+iris -->2
in 2years roy is twice as old as erick
roy+2=2(eric+2)
roy=2eric+2
substitute in eq 1
2eric+2=4+eric
eric=2
roy=4+2=6
iris=roy-2= 6-2= 4
these are prresent ages of roy=6 eric=2 and iris=4
after 2 yeas roy=8 and iris=6
6*8=48

ans:b

Is this solution Helpfull? Yes (6) | No (2)  

disha verma  (12 years ago)

exlaim properly

Is this solution Helpfull? Yes (5) | No (4)  

Ananjan Goswami  (9 years ago)

Roy is now 4 years older than Erik --> R=E+4
Roy is now ... half of that amount older than Iris --> R=I+frac{4}{2}=I+2 (half of the amount of 4)
In 2 years, Roy will be twice as old as Erik --> R+2=2(E+2) (in 2 years for both Roy and Eric)

Then in 2 years what would be Roy’s age multiplied by Iris’s age --> (R+2)(I+2)=?

Solving: R=6 and I=4 --> (R+2)(I+2)=48

Answer: C.

Is this solution Helpfull? Yes (3) | No   

Pavithra  (8 years ago)

Let present age of Roy be x.
Eric is 4 yrs younger than Roy->x-4
Iris is 2 yrs younger than Roy->x-2
In 2 yrs( According to the problem)
x=2(x-4) ->x=8(Roy's age)
Iris age=6,Eric's age=4
Hence Iris age*Roy's age=6*8=48

Is this solution Helpfull? Yes (3) | No   

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