question_answer

In a \[\Delta \]MMO, \[\angle \]MNO =\[\mathbf{90}{}^\circ \], MN: NP: PO = 3: 1: 3. If OM = 20 cm then what is the length of MP?

A)  \[2\sqrt{10}\]cm                                                           

B)  \[4\sqrt{10}\]cm    

C)  \[3\sqrt{5}\]cm             

D)                                \[4\sqrt{5}\]cm

E) None of these