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the shortest distance between point P and T

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by GMIHIR » Tue May 01, 2012 8:57 pm
P , Q , R , S and T are five points such that R is somewhere between point P and Q on a straight line.
The distance between P and Q is 8 units. The point S is 6 units to the north of R and point T is 6 units to the east of S
and north of point Q. Calculate the shortest distance between point P and T?
A 14

B 10

C 11

D 12

E 13
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by niketdoshi123 » Tue May 01, 2012 9:10 pm
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PT^2 = pq^2+qt^2
IMO ans is B
Last edited by niketdoshi123 on Thu May 03, 2012 2:07 am, edited 2 times in total.
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by PhDmessi » Wed May 02, 2012 1:42 am
Should it not be [spoiler]B)[/spoiler]?

The drawing is correct, but the shortest distance between p and t should be the hypothenuse of pq=8 and qt= 6.
8^2+6^2=10^2

Correct?
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by niketdoshi123 » Thu May 03, 2012 2:09 am
Yes the ans is B, by mistake I wrote it A.
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