The question consists of four statements numbered I, II, III, and IV given below it. You have to decide that the data provided in which of the following statement alone is not sufficient to answer the question.
Find the time taken by boat to cover 440 km downstream.
Statement I : The ratio of the speed of the boat to stream is 3 : 1 and the boat covers 150 km upstream in 15 hours.
Statement II : The speed of the boat in downstream is 66.67% more than the upstream speed of the boat. The boat can cover 156 km upstream in 13 hours.
Statement III : Upstream speed of the boat and the speed of the stream is 16 km/hr and 2 km/hr.
Statement IV : The ratio of the speed of the boat in downstream to the speed of the boat in upstream is 3 : 2.
1
Statement I only
2
Statement II only
3
Statement III only
4
Statement IV only
5
None of these