Latest TCS Aptitude Question SOLUTION: A child is looking for his father. He went 90 metres in the East before turning to his right. He went 20 metres before turning to his right again to look for his father at his uncl

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(#M40011601) TCS HR Interview question A child is looking for his father. He went 90 metres in the East before turning to his right. He wen Keep an EYE

A child is looking for his father. He went 90 metres in the East before turning to his right. He went 20 metres before turning to his right again to look for his father at his uncle’s place 30 metres from this point. His father was not there. From here he went 100 metres to the North before meeting his father in a street. How far did the son meet his father from the starting point?
a] 80 metres b] 100 metres c] 140 metres d] 260 metres

Asked In TCS Priyabrat Padhy (11 years ago)

Unsolved Read Solution (14)

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Read Solution (14) :

shyamlesh dash  (11 years ago)

100 is d ans

Is this solution Helpfull? Yes (11) | No (8)  

MADHURI GAMIDI  (10 years ago)

Clearly, the child moves from A to B 90 metres eastwards upto B, then turns right and moves 20 metre upto C, then turns right and moves upto 30 metre upto D. Finally he turns right and moves upto 100 metre upto E.

So AB = 90 metre, BF = CD = 30 metre,
So, AF = AB - BF = 60 metre

Also DE = 100 metre, DF = BC = 20 metre
So, EF = DE - DF = 80 metre

as we can see in image that triangle AFE is a right angled triangle and we are having two sides, need to calculate third one, so we can apply Pythagoras theorem here


A = sqrt{AF^2 + EF^2}
= sqrt{(60)^2+(80)^2}
= sqrt{3600+6400}
= sqrt{10000} = 100
So from starting point his father was 100 metres away.

Is this solution Helpfull? Yes (10) | No   

shivesh  (11 years ago)

80^2+60^2=10000
so ans will be 100 metres

Is this solution Helpfull? Yes (8) | No (1)  

Atul Priya Baranwal  (11 years ago)

100
100m
|Q
|80m
|
60m |
P-----------------90m
| |
| | 20m
| |
-------
30m
sqrt(80^2 + 60^2)=100m(ans)

Is this solution Helpfull? Yes (5) | No (1)  

Priyabrat Padhy  (11 years ago)

Ans will be 100 but how can anyone explain..

Is this solution Helpfull? Yes (3) | No (1)  

Priyabrat Padhy  (11 years ago)

how it will be 100??

Is this solution Helpfull? Yes (2) | No (3)  

aditya rathi  (11 years ago)

100...sqrt(80^2+60^2)

Is this solution Helpfull? Yes (2) | No   

neha mishra  (11 years ago)

80^2
+60^2=100^2
so 100

Is this solution Helpfull? Yes (1) | No   

apti_fever  (11 years ago)

PRIYABRAT PADHY: draw fig as per statement .. then use Pythagoras to get ans 100

Is this solution Helpfull? Yes (1) | No (1)  

vivek garg  (11 years ago)

ans is c option

Is this solution Helpfull? Yes (1) | No (1)  

shambhu  (8 years ago)

distance travelled in east and west does'nt matter
Dist of son from his father from starting point= 100-20=80m

Is this solution Helpfull? Yes (1) | No   

Tejaswi S R  (8 years ago)

After 30m he has to take left turn to go north for 100m. so ans is none

Is this solution Helpfull? Yes (1) | No   

arijit bhattacharjee  (11 years ago)

69.28 is the displacement

Is this solution Helpfull? Yes | No (1)  

lavanya  (8 years ago)

|80m
|
60m | 30m
-------------------------------------
| | 20m
-------------
30m

60+80=140m is the answer

Is this solution Helpfull? Yes | No (1)  

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