A ship developed a leak 15 km from the shore and yet could travel towards the shore at a speed of 10 km/hr for a maximum time of 18 min. A rescue vessel that was immediately sent from the shore to rescue the passengers would take 6 min to complete the rescue once it reaches the ship. What should be the minimum speed of the rescue vessel in order to be able to successfully evacuate everyone onboard the ship?

A ship developed a leak 15 km from the shore and yet could travel towa

1.	A ship developed a leak 15 km from the shore and yet could travel towards the shore at a speed of 10 km/hr for a maximum time of 18 min. A rescue vessel that was immediately sent from the shore to rescue the passengers would take 6 min to complete the rescue once it reaches the ship. What should be the minimum speed of the rescue vessel in order to be able to successfully evacuate everyone onboard the ship?
A.	72 km/hr
B.	70 km/hr
C.	68 km/hr
D.	65 km/hr
Answer» E.

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