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(#M40012788) TCS question Keep an EYE

Two people A and B starts running at 10:00 AM towards north at a speed of 40Kmph and 60Kmph respectively. After 2 hours(12:00 noon ), A turned left and B turned right. They stopped at 2:00 PM.Find the distance between A and B at 2:00 PM.
Answer:3200

Asked In TCS ankita khare (12 years ago)

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Ankit Gupta  (12 years ago)

make the fig and apply pythaguras theorem... sqrt(200^2 - 40^2)
answer 203.96 or 204

Is this solution Helpfull? Yes (20) | No (3)  

Eshwar K  (12 years ago)

i think answer is 240km

Is this solution Helpfull? Yes (19) | No (5)  

snehil  (12 years ago)

N
W E
S
AFTER 2 HR the co ordinate of A(0,80)
B(0,120)
FURTHER after two hr the co ordinate will be A(-80,80)
B(120,120)
SO distence =sqrt((120+80)^2+(120-80)^2)

Is this solution Helpfull? Yes (16) | No (3)  

AS  (12 years ago)

ans is 240
a in 2 hrs 80
b in 2 hrs 120
diff is 40 ........(1)
after 12 pm
a 2hrs 80 and b 120 in opp dir so diff=120+80=200...(2)
from 1 and 2
((200)^2+(40)^2)^1/2=240 ans

Is this solution Helpfull? Yes (7) | No (2)  

pihu  (12 years ago)

i hav thinked on it a lot bt everytym my ans is coming 204....plzz somody xplain hw it comes 3200

Is this solution Helpfull? Yes (6) | No (3)  

taruna  (12 years ago)

behen ans is 203.9...not 3200! huh!

Is this solution Helpfull? Yes (6) | No (1)  

sagar  (12 years ago)

answear is 204 ans

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

manish rathore  (12 years ago)

right ans is 203.93
using pytha.. (200^2+40^2)^1/2=203.93

Is this solution Helpfull? Yes (2) | No   

Manisha Gupta  (12 years ago)

after 2 hours(12.00)
a will traveled 80kms while B wil travel 120kms
after dat a turned left n b right
after 2 hours(2:00 pm)
a again travel 80kms and b vil travel 120kms

so distance between a and b
|-------120-------b
|40
|
a-----80-------*

using pythogoras theoram
dist b/w a and b = 205km
plz smeone xplain how it comes 3200

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

Narendra Kulkarni  (12 years ago)

203.96 km (approx).

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

bvs sharma  (12 years ago)

240 is the perfect answer

Is this solution Helpfull? Yes (1) | No   

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