Elitmus
Exam
Numerical Ability
Data Sufficiency
If the age of father is 4 years greater than the mother and 28 years greater than the son,then what is the age of the father:
which one should be used to calculate the age?
i)mother/son=non-prime no
ii)mother/son=perfect square
Read Solution (Total 8)
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- answer is IV (i.e. cant be answered)
as by using these conditions there can be different values for the age of father. - 11 years agoHelpfull: Yes(15) No(0)
- There is a little mistake in the question:It is a DS problem.
If the age of father is 4 years greater than the mother and 28 years greater than the son,then what is the age of the father?
which one should be used to calculate the age?
a)mother/son=non-prime no
b)mother/son=perfect square
I)a as well as b alone is sufficient to get the age
II)both a and b are required
III)either a or b is required
IV)Cannot be answered - 11 years agoHelpfull: Yes(8) No(0)
- The father's age will be 31.
mother's age=27
son's age=3
and it is possible only when option 2 is follows...
like.... (mother/son=perfect square)
(27/3)=9
- 11 years agoHelpfull: Yes(4) No(13)
- any comb. are possible
f-36,31,29
m-32,27,25
s- 8, 3, 1.. - 11 years agoHelpfull: Yes(4) No(1)
- father age would be 36
mother age=32
son age=8
ATQ
like (mother age/sons age)=perfect square
32/8=4 here 4 is a perfect square.
this question can have more than one answer... - 11 years agoHelpfull: Yes(2) No(3)
- fathers' would be 29;
m=25,
s=1;
=>m/s=25;
perfect square - 11 years agoHelpfull: Yes(1) No(2)
- let son age be X,,then father age is 28+x,,then mother age is 28+x-4 so mother/son age = (22+x)/(x) and we know that every perfect squre is non prime number..therfore we dont need 1 eqnt...hence this can be answered by only 2 eqnt..so the answer is "only one is alone sufficient"
- 11 years agoHelpfull: Yes(1) No(0)
- SATYAANJAN FINAL OPTION TO BTA DO YR
- 3 years agoHelpfull: Yes(0) No(0)
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