Comprehension Passage
Directions: Read the below paragraph and answer according to data given in particular question and this paragraph.
A boat speed is 15 km/h and speed of stream is 5 km/hr. Distance between A and B is 100 km and the boat is travelling between A and B. After travelling (6/10)th of the distance boat developed a fault and it travelled with different speed afterwards. (From A to B direction is downstream and from B to A direction is upstream)Boat is travelling from B to A and after fault its speed decreases by 5 km/h. Find the total time taken by him to travel from B to A.
1
8 hr
2
11 hr
3
5 hr
4
10 hr
5
14 hr