Saved Bookmarks
| 1. |
Carnival vista is a cruise ship. It can travel 125 km along the stream in 1 hours 15 minutes. If speed of the ship in still water is 75 km/h, then find the time taken by the ship to cover the same distance against the stream.1). 5/4 hours2). 5/2 hours3). 5/3 hours4). 5 hours |
|
Answer» Let, speed of STREAM be x km/h. ∴ Speed of the ship along the stream = (75 + x) km/h ∴ Speed of the ship against the stream = (75 – x) km/h According to question, ⇒ 1.25 × (75 + x) = 125 ⇒ 93.75 + 1.25x = 125 ⇒ 1.25x = 32.75 ⇒ x = 25 ∴ Speed of stream = 25 km/h. ∴ Speed of the ship against the stream = 75 – 25 = 50 km/h |
|