A ship is 88km away from the shore, springs a leak which admits 9/4 ton of water in every 5.5minutes. an outlet tank can throughout 12 tons of water per hour. Find at what speed it should move such that when it begins to sink a rescue ship moves with 6km/hr. escapes the passengers of the ship if 69 ton of water enough to sink?
(a) 8km/hr
(b) 5km/hr
(c) 7km/hr
(d) 10km/hr
Sol:
