Gmat prep

[sandranjeim]

A certain circular area has its center at point P and has radius 4, and points X and Y lie in the same plane as the circular area. Does point Y lie outside the circular area?

1) The distance between point P and point X is 4.5

2) The distnace between point X and point Y is 9


C

[eaakbari]

(1)

We have no info about point y. Insuff

(2)

We have no info about their relation to p.Insuff

(combined)

The shortest distance between P and Y will be if they all are collinear. Now since x is 0.5 cm away from circle, and x 9 from y, Then y will have shortest distance as 4.5 from P. Hence the shortest distance is outside circle, so it will always be outside circle
Hence Suff


answer C
Note

If distance between x and y was say 8, answer would be E