Question
Two boats X and Y start towards each other from two
places, 76 km apart. Speed of the boat X and Y in still water are 8 km/hr and 11 km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (8 + x) t + (11 – x) t = 76 ⇒ 8t + 11t = 76 ⇒ 19t = 76 ⇒ t = 76/19 = 4 hours
More Boats and streams Questions
Which metal is extracted from seawater?
Petroleum is a mixture of-
The noble gas used in radiotherapy is
Bronze is an alloy of-
A polymeric substance used to make parachute is
The nucleus of an atom consists of-
The gas usually causing explosions in coal mines is-
The pH of a neutral solution is —
The element used in the manufacture of safety matches is —
Milk tastes sour when kept in the open for sometimes due to the formation of-
Relevant for Exams:
