A girl walks 45 meters in the direction 050

^{o}from a point Q to a point X. She then walks 24 meters in the direction 140^{o}from X to a point Y. How far is she then from Q?-
**A.**

69m -
**B.**

57m -
**C.**

51m -
**D.**

21m

##### Correct Answer: Option C

##### Explanation

QY = 45^{2} + 24^{2} = 2025 + 576

= 2601

QY = (sqrt{2601})

= 51