Verbal Reasoning - Direction Sense Test - Discussion

If we don't get a perfect square number like the square root of 533.

Then what will be the answer, Is this 23 or none of these?

Try making a big right-angled triangle from the Dia.

Now the base value will be 10+2 = 12 and the height will be 2+3= 5. Now use Pythagoras theorem. 5^2+ 12^2 . Hence answer.

I can't understand this. Please explain me.

Very nice explanation, Thanks @Nagendra Murthy.

@All.

Let me explain it simply,

As in the answer pic (please see there) if we add the distances of AB and DC it would be 5 km(2+3) and the distances of BC and DE it would be 12km (10+2). Now, just extend AB and DE , we would get a point say F ( on their intersecting point). Now join A to E, we will get a right-angled triangle named triangle AFE.

Now by Pythagoras theorem, we will find out the line segment AE.
Hypotenuse^2= perpendicular^2 + base^2.
AE^2 = AF^2+ FE^2,
AE^2= 5^2 + 12^2,
AE^2= 25+144,
AE^2 = 169,
AE x AE= 13 x 13,
AE= 13.
So, 13 (option B) is the right answer.
Hope it helps

Good, Thanks everyone for explaining the answer.

How to solve this? Please explain me.