TCS Company Numerical Ability Age Problem

4 years ago ,Athena's age was twice Helen's age.4 years hence,Athena's age will be 4/3 times the age of Helen.Find Athena's present age in binary numbers during the time that the statement holds true.
a)100
b)1001
c)101
d)1100

Read Solution (Total 2)

let athena present age is x n helen is y..
then,
x-4=2(y-4)
3(x+4)=4(y+4)

by solving this ,
x=12
y=8
hence
12 in binAry will be--->> 1100
13 years agoHelpfull: Yes(10) No(1)

(A-4)=2(H-4)
A+4=4/3(H+4)
SOLVE 4 A AND CONVERT INTO BINARY
13 years agoHelpfull: Yes(2) No(1)

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