Verbal Reasoning - Direction Sense Test - Discussion
Discussion Forum : Direction Sense Test - Direction Sense 1 (Q.No. 12)
12.
A man walks 2 km towards North. Then he turns to East and walks 10 km. After this he turns to North and walks 3 km. Again he turns towards East and walks 2 km. How far is he from the starting point?
Answer: Option
Explanation:
Discussion:
37 comments Page 2 of 4.
Teresa said:
8 years ago
Why are we using Pythagoras theorem here?
(1)
Menaka said:
9 years ago
When to use Pythagoras theorem and when to just add the distance. Can some one explain the difference? By simply adding the answer is 12, by the theorem it's 13.
Logically, the distance he travelled towards north will not be considered when calculating the distance covered, am I right?
Logically, the distance he travelled towards north will not be considered when calculating the distance covered, am I right?
(1)
Nagendramurthy said:
1 decade ago
No. Here we have to find the shortest distance from a to e. so that can be find out like this..
Total distance travel towards north 2+3= 5km
Total distance travel towards east 10+2= 12km
Therefore the shortest distance will sqrt of (5*5+12*12) = sqrt(169) = 13
I think u got my point. Have a nice day.
Total distance travel towards north 2+3= 5km
Total distance travel towards east 10+2= 12km
Therefore the shortest distance will sqrt of (5*5+12*12) = sqrt(169) = 13
I think u got my point. Have a nice day.
(1)
Siyali said:
8 years ago
Can anyone explain that why we have to apply Pythagoras theorem here to get the answer?
Please explain me.
Please explain me.
Dhanshree said:
9 years ago
Difficult to find, Anyone explains easily?
Kalpita Mhatre said:
9 years ago
If we assume short side be x then hypotenuse is (2x+6) and 3rd side is (2x+4).
By applying Pythagoras.
(2x+6)square = (2x+4)square + x square.
Finally, gives x square -8x-20 = 0.
Which gives x=10 and x= -2.
So, sides are 10, 24 and 26.
By applying Pythagoras.
(2x+6)square = (2x+4)square + x square.
Finally, gives x square -8x-20 = 0.
Which gives x=10 and x= -2.
So, sides are 10, 24 and 26.
Chandrika labh said:
9 years ago
Bit confusing, Somebody please mark it correct answer for sure.
Shivam said:
9 years ago
Nice, well said @Murali.
Raghavendra said:
9 years ago
I understand it clearly, thanks for the given explanation.
Suresh said:
9 years ago
Sir, here we use right angle triangle then we find individual triangles. So this is not correct I think.
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